Several dozen protesters descended Thursday evening on Poncitlan Square in Palmdale, questioning the circumstances surrounding Robert Fuller’s death and demanding justice for other victims of police brutality against African Americans.

Fuller, 24, was found hanging from a tree last Wednesday less than a fortnight after another black man was found dead in a strikingly similar manner about 45 miles east of Palmdale.

But if that initial tragedy wasn’t enough, a second tragedy occurred when the half brother of Fuller, was killed by Los Angeles County sheriff’s deputies in a shootout Wednesday, officials say.

But the Los Angeles County Sheriff’s Department said there was no evidence of foul play in the death of Fuller and deemed it a likely suicide based on preliminary findings but vowed to continue to look deeper into the case.

“Investigators have been in contact with Mr. Fuller’s family and are continuing their investigation into the circumstances surrounding Mr. Fuller’s death,” Palmdale officials wrote in a statement.