In the Heat of the Night is an American drama television series based on the 1967 film and the 1965 novel of the same title. It starred Carroll O'Connor as white police chief William Gillespie, and Howard Rollins as black police detective Virgil Tibbs. It was broadcast on NBC from 1988 until 1992, then on CBS until May 1995. Its executive producers were Fred Silverman, Juanita Bartlett and Carroll O'Connor. Wikipedia
Parker: I got a call from Randy Calhoun.
Bill Gillespie: Tell him we're closed.
Parker: It's about a murder.
Bill Gillespie: Did he commit it?
Parker: I don't think so. I forgot to ask.
Bill Gillespie: Well, that might have been an important question.