Kendrell Lyles pleaded guilty to the 2019 Dallas murder of Booker, a transgender woman, ahead of his trial.
Jury convicted Edward Thomas on a misdemeanor charge of assault, rather than a felony charge
The 27-year-old becomes fourth transgender person to be violently killed this year
Muhlaysia Booker calls for justice at rally and press conference
Attack on Muhlaysia Booker, caught on videotape, is being investigated as a potential hate crime
Transgender woman beaten into unconsciousness by a mob in Dallas