Conversation so far:
How long did Harold Shipman's trial last?
Harold Shipman's trial took six days of deliberation.
What year did Harold Shipman go on trial?
Harold Shipman's trial began at Preston Crown Court on 5 October 1999.
What was Harold Shipman on trial for?
Harold Shipman was charged with 15 counts of murder by lethal injections of diamorphine, all between 1995 and 1998.

Question: Did any of the victims families testify at the trial?
Self-contained rewrite: Did any of the victims families testify at Harold Shipman's trial?