DeAllen Davonta Price had been in a relationship with Ashton, police said.
Police officers in riot gear burst into a bookstore and charged individuals with a law widely viewed as unconstitutional.
Ashton is at least the 31st trans, nonbinary, or gender-nonconforming person to have died by violence in the U.S. this year.
Danny Henson was shot to death in Baltimore, Sophie Vásquez in Georgia.
This is at least the sixth homicide of a transgender American in 2020.
The powerful Maryland congressman spoke out strongly for equality for all.
Her name was Bailey Reeves.