Breonna Taylor protests

The death of Breonna Taylor energized a nationwide movement to restrict "no-knock" police raids, but activists want tightened rules for other kinds of forced-entry search warrants.

Sgt. Jonathan Mattingly says Kenneth Walker committed battery, assault and intentional emotional distress. Walker filed a civil lawsuit against the city and the police department last month.

"The Grand Jury is meant to be a secretive body," Attorney General Daniel Cameron says in a statement. "It's apparent that the public interest in this case isn't going to allow that to happen."