Robert Stack, whose granite-eyed stare and menacing baritone spelled trouble for fictional criminals in TV's The Untouchables and real ones in Unsolved Mysteries, has died at his home. He was 84.

LOS ANGELES -- Veteran actor Robert Stack, who earned an Emmy as the tough-guy hero of TV's "Untouchables" and an Oscar nomination at the height of his movie fame in the 1950s, has died. He was 84.

Veteran actor Robert Stack, who earned an Emmy as the tough-guy hero of TV's "Untouchables" and an Oscar nomination at the height of his movie fame in the 1950s, has died. He was 84. Stack, 84, was ...

Robert “Bob” S. Stack February 3, 1923 – July 14, 2004 Bob Stack, a 39-year resident of Walnut Creek, passed away peacefully in his home, surrounded by his family, after a long, brave battle with ...

LOS ANGELES (AP) -- Robert Stack, the tough-guy hero of TV's "Untouchables," was remembered Thursday as a real-life softie. Stack, 84, was found dead of a heart attack Wednesday evening at his home by ...