Definition: In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.
Input: passage: Nick Chinlund guest starred as condemned serial killer Matthew Brodus in the episode ``Execution''. Chinlund had originally auditioned to portray the role of Detective Elliot Stabler. John Ritter guest starred as Dr. Manning, a psychiatrist who becomes the prime suspect in his wife's murder, in the episode ``Monogamy''. Ritter was praised for his performance in the episode, which aired shortly before his death; Michael Buckley of TV Guide wrote that ``The gradual change in his demeanor makes for a memorable piece of acting.''
 question: was john ritter on law and order svu?

Yes