Authorities in Harford County were still trying to piece together the circumstances that allegedly led Snochia Moseley to open fire Thursday at a Rite Aid distribution center in Aberdeen, Maryland. >> Read more trending news Four people died, including Moseley, according to Harford County Sheriff Jeffrey Gahler. Authorities have not identified the victims. After the shootings, Moseley fatally shot herself in the head, police said. >> Female gunman kills 3, injures 3 Here is what is known about Moseley so far: Gahler said Moseley was a temporary employee at the Rite Aid warehouse and had reported for work as normal Thursday. Troi Coley, who told The Baltimore Sun that she had been a friend of Moseley’s since they attended high school, said Moseley was not an angry person but sometimes felt the world was against her. “She wasn’t a monster, wasn’t an angry person,” Coley told the newspaper. “I just believe this was emotional distress. If she did this, it was her last straw.” Coley said Moseley had written a manuscript and the two friends planned to turn it into a documentary film, the Sun reported. Moseley graduated from Baltimore’s Overlea High School in 2011, a Baltimore County Schools spokesman told the Sun. Moseley enrolled at the Community College of Baltimore County in 2011 and intermittently attended classes until 2015. She did not earn a degree. >> There have been 3 workplace shootings in 24 hours Myles Nelson, who attended Overlea High School with Moseley from 2007 to 2011, told The Washington Post that “from what I can remember she was very laid back. I don’t remember her having problems with anyone.” Moseley didn’t have a criminal record, the Baltimore County Sheriff’s Office said. The Glock 9mm weapon used in the shooting was registered to Moseley, the Sun reported. According to online court records, Moseley was stopped three times by Baltimore County police. She was ticketed for not having current registration plates, having a suspended registration, failing to update her address with the department of motor vehicles, and not having insurance. According to the New York Post, Moseley described herself on social media as a quiet person with a “to myself type of personality.” On her Facebook page, she said her favorite Bible verse was “an eye for an eye, a tooth for a tooth,” the newspaper reported.