The Interrogator Season 2 is yet to be announced by Investigation Discovery

Jennifer McKinley, 28, is strangled to death in her bedroom while her young son sleeps; Detective Fil Waters learns the victim's mother was murdered 25 years ago in a case that has never been solved.

Two generations of Contreras family members are shot in broad daylight while they are working at their family-owned car dealership; Detective Fil Waters boils it all down thanks to an eyewitness, a scorned woman and a videotape.

A mother of two is shot to death outside her apartment complex just minutes after returning home from her 30th birthday celebration; after interviewing multiple witnesses and suspects, Detective Fil Waters uncovers a shocking lead caught on video.

After two Yellow Cab drivers are murdered in under a week, the city of Houston is thrown into a frenzy; Detective Fil Waters soon learns there are recordings of the same female voice luring the drivers to their deaths.

A young woman finds her beloved neighbor, Rebecca Claybrook, beaten to death in her home; Detective Fil Waters puts the men in Claybrook's life under the microscope.

A woman experiences her worst nightmare after her 12-year-old son is abducted on Christmas Eve; Detective Waters soon learns that the child has gone missing before and will stop at nothing to solve the case.