Screen and television veteran Robert Stack, best known to audiences as Eliot Ness, the crimefighter on the popular series “The Untouchables,” died Wednesday at his home in Los Angeles. He was 84.

EXCLUSIVE: Robert Stack never lost hope that some of the country’s most shocking cold cases could be solved. The veteran actor, who earned an Emmy as the tough-guy hero of TV’s "Untouchables" and an ...

Unsolved Mysteries is indelibly associated with Stack, whose deep voice lent an air of spooky gravitas to each segment. But the series (which aired in various versions and on different channels from ...