Nashville school shooter Audrey Hale, a 28-year-old transgender artist and former student, legally purchased the firearms used in the attack behind the family's back despite serious emotional issues that required a doctor's attention, according to authorities.

Metro Nashville Police Chief John Drake also told reporters Tuesday that a motive in the Monday attack at the Covenant School remains unknown and that the shooter had targeted the school but not any individual victims specifically. The school operates as a ministry of Nashville's Covenant Presbyterian Church.

"We've interviewed the parents of Audrey Hale, and we've determined that Audrey bought seven firearms from five different local gun stores here legally," Drake said during a news briefing. "They were legally purchased. Three of those weapons were used yesterday during the horrific tragedy."

Hale's parents told police they were only aware of one firearm, which they believed Hale had previously sold, he said.

Source: Fox News