Ironside S08 E12 Speak No Evil

"«The chief of detectives!»"

A friend of Ed's becomes the target of an assassin, but cannot shed any light on the reasons for the attempt on his life. When Ed discovers that his friend is a priest, prevented from speaking by the bounds of confession, he and the Chief attempt to discover the truth; which soon leads them to three unexplained murders amongst the city's drug dealers.