John Walsh created 'America's Most Wanted' after his son was brutally murdered. That tragedy changed his family forever. Here's what we know about them.

John Walsh looks back at the groundbreaking true crime series "America's Most Wanted," in "America’s Most Wanted: John ...

After their son's death, the Walshes welcomed three other children — Meghan, Callahan and Hayden — and raised them out of the ...

John Walsh and his son Callahan are looking to bust more bad guys with the help of the public through America’s Most Wanted. Fox’s true-crime staple returns for Season 28 on April 21 where the ...

America’s Most Wanted host John Walsh looks back at a “dirty dozen” of the show’s most memorable captures. A Netflix ...

and more determined than ever—as John and Callahan Walsh team up to track down the "worst of the worst." Fox News Digital spoke with the father-son duo ahead of their third season premiere on ...

John Walsh and his son Callahan Walsh look back at the origin story of the groundbreaking true crime series America's Most ...

John Walsh, Hayden Walsh, Meghan Walsh, Reve Walsh and Callahan Walsh backstage after Meghan Walsh "Blank Silk" fashion show on April 21, 2011 in Miami Beach, Florida.

John Walsh's Dirty Dozen," celebrates the long-time host hitting 1,100 episodes of "America's Most Wanted" by going through ...