Police said a family gathering was taking place when an uninvited guest arrived. The guest was asked to leave, but not before he began firing into the crowd.
"First time, and she didn't end up coming back home; she ended up dying," her father said.
The weapon used in the September shooting that killed officer William "Bill" Jeffrey and wounded Sgt. Michael Vance had a device that made it fully automatic, police said.
More than 90 people were found huddled inside a modest two-story home on Friday.
"There should never be another George Floyd guilty of being Black." Leaders joined Floyd's family in discussing the George Floyd Act.
It was his dying wish to fulfill his democratic duty, his wife said, and to hopefully motivate others to vote.