In Pursuit with John Walsh - Episode Guide

Luis Frias makes John Walsh's most-wanted list after allegedly stabbing his common-law wife to death in front of their children; Callahan Walsh explores the case of Harold Butch Knight, who left a trail of clues after confessing to killing his wife.

John Walsh spotlights freshman Jihad Ramadan, who allegedly introduces a knife to a fistfight that claims a star college student's life. Later, Callahan Walsh looks for Thayne Smika, who, police believe, shoots his roommate in cold blood over back rent.

John Walsh reveals that a single mother is far from safe with ex-Marine Raymond R.J. McLeod who initially seemed like a knight in shining armor; Callahan Walsh discovers how rapper Maurice Nesbitt's constant abuse of his girlfriend turns deadly.

Salvador Vaca Garcia makes a tearful appearance on local news after his girlfriend disappears; Callahan Walsh looks at Brian Keith Freeman who allegedly slit his fiancé's throat when their engagement fell apart.

John Walsh investigates the accusation that Lamont Stephenson strangled his fiancé and her dog; Callahan Walsh explores police claims that Gloria Schulze is a drunk driver who repeatedly cheats the legal system.

John Walsh profiles triple homicide suspect Mike Bullinger who led a double life; Callahan Walsh looks at the case of Tomas Magallon Gonzalez, who allegedly sexually abused his stepdaughter for years before taking her life.

John Walsh profiles Juan Lazaro Abrego who is believed to have murdered his ex-girlfriend, a beloved schoolteacher; Callahan Walsh investigates Derek Dean, a St. Louis man accused of shooting identical twins, killing one and wounding the other.

John Walsh tracks the story of convicted killer Glen Stark Chambers, who beat his young girlfriend to death and then escaped prison twice; Callahan Walsh investigates a murder suspect who eludes capture for 20 years.

John Walsh profiles John Blauvelt, a troubled U.S. Army vet who is accused of waging a lethal war against his young wife. Later, Callahan looks at Rudy Fernandez, whose teen romance with his high school sweetheart is believed to have turned deadly.

John Walsh investigates Alicia Osibin who is wanted in connection with the shooting death of her elderly mother; Callahan Walsh speaks to Andrea, an alleged victim of Frederick McLean's abuse, who is still desperate for McLean's capture.

John Walsh investigates how Eric Jones, the son of a preacher, allegedly turned to murder; Callahan Walsh tries to make sense of how a dispute over a dog could provoke Ricardo Villanueva Cordova to reportedly commit murder in broad daylight.

The case of youthful con man Edgardo Perez, who allegedly preyed on older men until it turned deadly; Callahan Walsh travels to Boulder where teenage babysitter Chris Deininger confessed to abusing 29 kids in his care before fleeing.

John profiles fugitive Leroy Headley, who called 911 claiming to have shot his girlfriend, Anako Lumumba; Cal goes to Abilene, Texas, to learn more about a tale of predatory sexual abuse involving a predator whose own wife reports him to police.

A tragedy in a small community has John Walsh pursuing an outlaw named Jory Worthen, while John's son, Callahan, takes on the case of fugitive Derrell Demon Brown, an offender with a dark past.

When a costly mistake allows a criminal to escape justice, John steps in to help investigators in pursuit of felon Lester Eubanks. And Cal looks into the case of William Stanson, a supposed loving father to turned out to be and sexual predator.

When a double shooting leaves one woman dead and another clinging to life, John joins police on the trail of fugitive Lenell Kirby; Callahan takes on the murder of a dear Walsh family friend, Lindsay Harris.

After a vulnerable elderly man is brutalized in his rural home, John joins a manhunt for Derek Whisenand; then newlywed bliss turns into a vicious crime, so Cal goes on the trail of fugitive Arnoldo Jimenez.

John joins police on a strange and twisting missing persons case that turns fatal, sending investigators on the trail of Alejandro Castillo. And Cal takes on the case of Leticia Smith, a woman on the run from a terrible crime with nothing to lose.

When an unthinkably violent criminal flees before his trial, John Walsh joins local authorities on the chase for Michael Waguespack; Cal uncovers hidden and painful truths in a Christmas Eve tragedy that sent police hunting for Miguel Angel Martinez.

When an insidious sexual predator is discovered hiding in plain sight, John helps police in the pursuit of dangerous James Meece. And after a brutal home invasion, Cal goes into the field to help police track down the dangerous James Watts.

John and investigators follow the trail of a chilling 911 confession that leads them to dangerous Nimrod Guerrero; when Frederick McCaskill leaves a survivor clinging to life, police and Cal work to make sure this criminal doesn't elude justice.

John joins the hunt for prominent community members Torin and Rena Smith, who absconded from justice after being accused of shocking crimes. Meanwhile, Cal pulls back the curtain on Carnell Spencer Lee Jr., a vicious criminal with a dark and menacing past.

A family feud escalates to brutal violence and John joins police in pursuit of Top Ten FBI fugitive Eugene Palmer. Callahan immerses himself in one of the most brutal cases he's ever seen as he helps authorities track down Tamera Williams.

John works with investigators to bring Frank Contreras into custody after he commits a terrible crime witnessed by a child; Cal takes on a heartbreaking case where authorities desperately need the public's help to identify a vicious criminal.

John hunts Erik Arceneaux, the prime suspect in the murder of a devoted single mom whose family needs justice. Later, Cal learns the dark truth behind Mark Blevins, an alleged sexual predator who has been on the run for over thirty years.

John joins the hunt for Brian Ontiveros, who is alleged to have killed his ex-girlfriend in a fit of jealousy. Later, a woman's mysterious death has Cal join police in the search for Robert Kuehn, who's been in the wind since 2013.

When a young woman is murdered, police suspect her boyfriend Carlos Torres, but before his trial, Torres cuts off his ankle monitor and flees. Cal joins the hunt for Bill Brockbrader, a child predator wanted for failure to register as a sex offender.

A woman's murder leads police to suspect her husband - and former prison pen pal - William Plemons, who's been on the run since 2003. Cal joins the hunt for suspected murderer and arsonist Darryl Walker in Georgia.

A single mom is murdered, and police suspect Isaac Estrada, a man she'd just met. Estrada flees, and John is in close pursuit. Cal goes behind the scenes of Miami's luxury car rental business, helping police hunt down alleged killer Nalio Williams.

John joins the hunt for Lorrain Smith, a woman who allegedly hired a hitman to murder her husband. Later, Cal pursues John Panaligan, a man accused of killing the lawyer who was suing him.

John aids investigators in pursuit of fugitive Pedro Espinoza, accused of two senseless murders in a two-year span. Later, after an 85-year-old woman is brutally stabbed to death, Cal joins the hunt for the alleged killer, Ervis Mecollari.

When a couple is murdered, police suspect vengeful relative Kevin Anderson, and John aids the hunt for this fugitive of justice. Later, Cal helps police track down Martin Munoz, accused of heinous sexual assaults against his own daughters.

John Walsh joins the hunt for Adarus Black, who allegedly killed a young woman in broad daylight; Cal is in San Diego to help track down Michael Pratt, whose pornography ring allegedly ensnared over 100 women using fraud, coercion, and possibly force.

John is in pursuit of fugitive Jason Hines, accused of sexually abusing multiple minors and possibly involved in his wife's disappearance. Later, a slew of women allege they were sexually assaulted by chiropractor Steven Clifford on the run since 2002.

John joins the hunt for fugitive Hector Hugo Ramirez-Lopez, suspected of both murder and sexual assault. Cal uncovers dark family secrets in the case of Sherman Jackson, who's been on the run since 2010.

John's on the hunt for Jorge Rico-Ruvira, accused of murdering his girlfriend in 2020 and abducting their young son. Later, John and Cal shine a spotlight on the case of 15-year-old Sophie Reeder, who was abducted in 2017 and may be in grave danger.

John is in pursuit of William Strand. Police say he killed his ex-girlfriend who was also the mother of his son. Later, Cal hunts for Leslie Lagrotta, a suspect accused of sexually assaulting women in central Florida for over a decade.

John is in pursuit of suspect Jonathan Dorado, wanted for killing a woman and her unborn child in an act of misplaced gang revenge; Cal hunts for Henry Houston, accused of conning a vulnerable woman and later killing her father in an altercation.

When a man is senselessly gunned down at a party, police learn it may be a case of mistaken identity. John joins the hunt for suspect, Collin Jerrick. Later, Cal helps police hunt David Bonness, accused of sexually abusing his former stepdaughter.

John joins the search for Celina Mays, whose disappearance draws police attention to her family-run, allegedly cult-like church; Cal hunts for Efren Meza, who was accused of stalking and stabbing his ex-girlfriend.

When a young girl goes missing after a night out in Vegas, police suspect her friend Erick Rangel-Ibarra; Cal goes after Jerold Dunning, accused of sexually abusing his girlfriend's daughter for years.

John helps police track down Glen Holmes, accused of carjacking a couple and murdering one of them. Later, Cal joins the hunt for online predator Adrian Fierros, who coerces young girls into sending him explicit photos that he uses to extort them.

When a young father is executed, police learn the shooter may have been his close childhood friend. John helps track down the alleged killer, Diontae Whitson. Later, Cal's in pursuit of Louis Rojas, accused of murdering his ex-wife's new husband.

John joins the hunt for Arturo Munguia, aka Jesse Vega, accused of murdering his girlfriend in an act of petty jealousy. Later, Cal helps track down Rex Byrnes, an unemployed metalhead whose own daughter accuses him of years of sexual abuse.

John goes after Eduardo Clemente, the prime suspect in his girlfriend's murder after her body turns up in the desert. Later, Cal's in North Carolina to hunt down Emigdio Ramirez Garcia, accused of ruthlessly murdering his wife in 1997.

John is in pursuit of Jolene Hibbs and Charles Ausiello, a couple accused of murdering a retiree and selling off his assets. And later, John and Cal team up to hunt for the mysterious Boca Raton Mall murderer who terrified South Florida in 2007.

John hunts Omar Cardenas, the prime suspect in the murder of a devoted father who may have been caught in a random act of gang retaliation. Later, Cal heads to Pennsylvania to track Justin Smith, accused of murdering his pregnant girlfriend.

John hunts for Jose Bustos-Diaz, a convicted killer and prison escapee suspected in another slaying. Later, Cal's in pursuit of Benjamin Williams, accused of murdering his ex-girlfriend in front of her two young children, including his own baby.

In the first featured story, Callahan travels to the picturesque town of Cape Coral, Florida to learn more about the disappearance of 29-year-old single mother, Lauren Dumolo, who was reported missing on June 19, 2020. In his quest to bring Lauren home, Callahan uncovers dark secrets and learns that certain people in Lauren's life might not have had her best interest at heart. Then, Callahan travels across the state to Ft. Lauderdale and immerses himself in the 2017 missing persons case of then 15-year-old Sophie Reeder, who snuck out from her father's home in the late evening hours on Friday, May 19.  When his investigation takes a turn into the shadowy world of the dark web, Callahan takes a deeper dive into the epidemic of human trafficking, and uncovers clues that Sophie might have fallen in the hands of those who perhaps groomed and targeted her.

In both cases, few clues are left behind, leaving Callahan to conduct boots-on-the-ground investigations into these disappearances. Speaking with law enforcement and the victim's family to understand the circumstances surrounding the fateful day they were last seen, Callahan works to reveal any leads or information that have been unearthed since they've been gone and asks viewers to call if they have information on the cases.

IN PURSUIT: THE MISSING also spotlights missing children cases from around the country, including: the July 10 disappearance of 10-year-old Breasia Terrell from Davenport, Iowa;  the August 4 disappearance of 12-year-old Jaylen Griffin from Buffalo, New York; the May, 2019 disappearance of then-16-year-old John Riser from Washtoukna, Washington; and the 2015 disappearance of then 5-year-old Ava Baldwin from San Antonio, Texas, which includes an age-progression photo provided by NCMEC to help guide the public on what she might look like now that she's 11.