A hard-nosed and determined presence on network television for over two decades, John Walsh was the host of the long-running "America's Most Wanted" (Fox, 1988- ), which helped to track down missing criminals and children. It was a job Walsh came to not by choice but through tragedy: his only son, Adam, was abducted and found murdered in 1981. Because of this incomprehensible loss, Walsh and his wife, Reve, became tireless advocates for children's rights, including the passage of the Missing Children's Act of 1982 and the Adam Walsh Child Protection and Safety Act of 2008. His work with "America's Most Wanted" resulted in the capture of over 1,000 fugitives from justice. Walsh's work in assisting law enforcement and government officials, as well as families across America, made him one of the most successful, respected public advocacy figures in television history.