Investigation Discovery HD (Pacific)

A single mother overcoming addiction struggles to raise her son and daughter; despite what appears to be a loving family and a sibling bond she could only hope for, she never could have foreseen the true monster that lies within her 13-year-old son.

Days after New Year, the close-knit Baychester community in the Bronx is stunned by the sudden disappearance of a beloved local daycare owner. Investigators soon grapple with a shocking twist in the story right under their noses.

Someone ambushes and kills a loving husband near his new office; a surveillance camera captures the clearly targeted attack; each clue that investigators find leads to the next, until the pieces of puzzle expose the callous motive for the crime.

When Dreamer meets Teddy, she sees a broken young man and hopes her love will change him; he returns her love with fear, cruelty and control; after her father tries to help her escape his clutches, Teddy makes them pay a price.

John takes on accused financial fraudster Ruja Ignatova, whose alleged crypto con landed her on the FBI's top ten most wanted list; Callahan heads to Pennsylvania on the trail of Freddy Calle, accused of sexually abusing a teenage girl.

John is on the trail of fugitive Larry Hicks, accused of murdering a devoted mother of two in Plattsburgh, N.Y.; Callahan heads to Texas to shine the white-hot spotlight on accused predator Steven Leifeste.

After the murder of a beloved family man in Florida, John profiles the mysterious accused killer, John Galvan-Sahb; Callahan heads to Los Angeles to help police with a twisted case of child sexual abuse allegedly perpetrated by Dublas Gonzalez.

John joins the hunt for Jovanny Romo Arellanes, who California police say killed his ex-girlfriend; Callahan seeks answers for a family that never gave up hope surrounding a mysterious case involving alleged killer Steven Oboite.

In Maryland, a high-speed chase erupts when a serial dangerous driver strikes again, putting one officer's life in grave danger; in Georgia, police hunt a bank robber, and in Wisconsin, a gunfight breaks out when a lone officer confronts an armed man.

In Oklahoma, a suspected drug dealer leads police on a perilous pursuit down a busy interstate; in Michigan, an officer comes under fire from a masked gunman; in Missouri, a sting operation goes wrong when the armed suspect takes off on foot.

Arkansas police stop a knifeman enraged over a midnight pot roast; in Delray Beach, Fla., officers must rescue two children teetering on a ledge with their mother who is high on drugs; in Utah, a trespasser attacks an officer with his own baton.

Officers chase a suspect, attend a car fire, and detain a homicide suspect.

Oceanside police pursue a violent suspect following a domestic shooting; officers also intercept a reckless driver headed toward 10k runners; they rescue residents from a building fire.

A suspect sets fire to his home, and officers battle deadly floods.

In 2014, graduate student Tequila Suter is stabbed to death in her suburban Buffalo home; investigators' only hope of solving the case is to piece together a trail of CCTV across town and follow in the footsteps of a killer.

In 2013, Kira Steger goes missing after a date night with her husband at the Mall of America; after a shocking discovery in a parking lot, investigators fear foul play; they turn to mall security footage in the hopes of solving this mysterious case.

In Kentucky, 13-year-old David Oakley comes home to find his stepmother murdered and his 15-year-old sister Jenna missing; Police race to piece together a killer's video trail, only to uncover a brutal plot.

The discovery of a burned body sends police on the hunt for camera footage that may show the crime.

A woman's lively get-together at her local bar ends with a baffling murder.

In Farmville, North Carolina, three family members working at a convenience store fall victim to the most cold-blooded crime the town has ever seen; detectives attempt to pick up the killers' video trail and put an end to their bloody spree.

When St. Louis Blues player Mike Danton faces arrest following the Stanley Cup playoffs, shockwaves spread through the hockey world as investigators examine an alleged murder-for-hire plot.

Baylor University basketball player Patrick Dennehy goes missing; for the first time ever, teammate Ellis Kidd Jr. shares his personal account of the murder investigation and scandal behind this NCAA's big controversy.