Medical examiner rules George Floyd death was a homicide

The mothers of Trayvon Martin and Leslie Prater spoke about grief, police brutality, and how to make change during a forum at the University of Delaware.

The time span is how long prosecutors say George Floyd was pinned to the ground under a white Minneapolis police officer's knee before he died.

Advocates are questioning whether tough police tactics against demonstrators are actually making the violence worse rather than quelling it.