Dead silent

Homicide victims rarely talk to police

That's the headline. Presumably victims did speak at one time. Now they don't. What happened to stop it? Are the dead responsible? Is someone else? Why? How are the police handling murders now? Is it only homicide victims who won't talk or all dead?

Write a story from the view of a cop in the newly created homicide division.

Or from the view of a Dead Talker who is investigating what has happened.