— Family and friends of a North Carolina Central University student killed by a security guard last month were protesting outside the security company’s building Friday afternoon.

DeAndre Ballard, 23, was shot Sept. 17 at his off-campus apartment at Campus Crossings in Durham.

Police have still not released the details of what happened that night, but the security company said the guard was acting in self-defense.

Ballard’s mother said she was told her son was trying to break into cars and got into a tussle with the guard prior to the shooting. She previously said she doesn’t believe that story, noting her son was wearing only shorts and socks at the time, which is an indication he had briefly stepped out of his apartment to get something and was not up to mischief.

Friends and family believe there are many unanswered questions in Ballard’s death and held up signs across the street from the NC Detective Agency Friday. They said they want to hear what police say happened that night and want authorities to release the name of the security guard involved in the shooting.

“We want the name of the guard. If you’re so innocent and your killing was so justified, what are you hiding from? What are you afraid of? It’s not right, what happened to DeAndre, and what happens too often in the country and we want to shed light on that,” said Ballard’s friend, Alvarez Rodgers.

The NC Detective Agency said last month that the guard involved in Ballard’s death is state-certified and has 15 years of experience.

Records from the Private Protective Services Board show several violations for the NC Detective Agency‘s president, Roger Ladd. The violations are from 2010 to 2012 for failing to properly train guards and for falsifying training records.

Fridays protest is scheduled to go until 4 p.m. and additional protests are scheduled for this weekend. The group said they will continue to protest until their questions are answered.

Police haven‘t charged anyone in Ballard‘s death but said an investigation is ongoing.