“I filed a wrongful death suit against Deputy Peterson today,” Pollack tweeted Monday night. “I want to expose that coward so bad. Where ever he goes I want people to recognize him and say that’s one of the cowards of Broward. The SRO that let those children and teachers die on the 3rd floor!”

The complaint, filed Monday afternoon in Broward County, states that since Peterson’s “special duty existed in whole, or in part, with the teachers and students of Marjory Stoneman Douglas,” his actions and inactions prevented “real — brave — law enforcement officers from entering the building” and exhibited a “wanton and willful disregard of human rights.”

Pollack is also taking legal action against suspected gunman Nikolas Cruz, his dead mother’s estate, and the family who housed Cruz after his mother died and several mental health centers that treated him.