Crime Nashville Shooter Legally Bought 7 Guns Despite Being Treated for 'Emotional Disorder,' Hid Them from Parents The shooter responsible for killing six people at a Nashville private school lawfully purchased multiple guns and hid them at home, say police By Tristan Balagtas Tristan Balagtas Digital News Writer, PEOPLE People Editorial Guidelines Published on March 29, 2023 02:00 PM Share Tweet Pin Email Shooting at Covenant School in Nashville, USA . Photo: HAMILTON MATTHEW MASTERS/EPA-EFE/Shutterstock The shooter who killed six people at a Nashville private school lawfully purchased multiple guns and hid them at home, according to police. During a press conference Tuesday, Metro Nashville Police Chief John Drake said Audrey Hale "bought seven firearms from five different local gun stores here, legally." Three of the guns were used in Monday morning's mass shooting at The Covenant School, which left three 9-year-olds and three school staff members dead. The shooter, 28, gained access through a side door and stormed the school with two "assault-type rifles" and one pistol, but was killed in a shootout with responding police officers 14 minutes after the initial 911 call was placed, police previously stated. According to Drake, the assailant's parents were unaware there were seven guns in the home and believed at one point there was only one weapon, which they thought was later sold. 2 Hero Officers Confronted, Fatally Shot Nashville School Shooter The parents also told police they felt the shooter "should not own weapons." At the time, Drake said the assailant was under "doctor's care for an emotional disorder," though he could not elaborate. Speaking with NBC News, the police chief speculated that feelings of "resentment" may have motivated the shooter to go on a killing spree at the private Christian school the assailant once attended. "There's some belief that there was some resentment for having to go to that school," Drake said. While the school was specifically targeted, it's believed the victims, identified as Evelyn Dieckhaus, 9, Hallie Scruggs, 9, William Kinney, 9, Cynthia Peak, 61, Katherine Koonce, 60, and Mike Hill, 61, were not targeted as individuals, said police. Jenna Bush Hager 'Knew of' 9-Year-Old Girl Killed in Nashville Shooting: 'It's Just Beyond' Nashville school shooting. John Amis/AP/Shutterstock What Drake described as a "manifesto" was recovered from the shooter's home. It revealed the attack was "calculated and planned," a Monday news release reads. The release adds there were diagrams "drawn of the school in detail" that appeared to include entry and exit points and surveillance. "We have some writings that we're going over that pertain to this day, the actual incident," Drake said at a news conference, per NBC News. "We have a map drawn out of how this was all going to take place." Want to keep up with the latest crime coverage? Sign up for PEOPLE's free True Crime newsletter for breaking crime news, ongoing trial coverage and details of intriguing unsolved cases. Police said there were indications the shooter planned to target other locations, as well. "It [the manifesto] indicates that there was going to be shootings at multiple locations, and the school was one of them," Drake said, per the outlet. In a statement obtained by PEOPLE, The Covenant School said, "We are grieving tremendous loss and are in shock coming out of the terror that shattered our school and church. We are focused on loving our students, our families, our faculty and staff, and beginning the process of healing." How to help You can donate to the families of the victims through the The Community Foundation of Middle Tennessee. ViVE and VictimsFirst have also created GoFundMe pages for donations. Both fundraisers are verified.