The writings of the person who perpetrated a shooting at a Christian school in Nashville, Tennessee, last month are under review for public release, Metro Nashville Police Department's public information office noted, according to fox17.com

"The investigation has advanced to the point that writings from the Covenant shooter are now being reviewed for public release. That process is underway and will take a little time," the MNPD public information office noted, according to the outlet.

A 28-year-old shooter carried out the March 27 attack at the Covenant School, killing three children and three adults. The perpetrator was fatally shot by law enforcement.

"The Covenant shooting was a tragedy beyond comprehension, & Tennesseans need clarity," Tennessee Gov. Bill Lee (R) tweeted. "We've been in touch with the Nashville Police Department, & today, Chief Drake assured me that documents & information regarding the shooter will be released to the public very soon."

MNPD reported in early April that the investigation indicated the shooter had "fired a total of 152 rounds (126 5.56 rifle rounds and 26 nine millimeter rounds) from the time she shot her way into the school until she was killed by police."

MNPD also noted in that early April press release that the shooter had "documented, in journals, her planning over a period of months to commit mass murder at The Covenant School" but that the individual's motive had not been determined.

"The writings remain under careful review by the MNPD and the FBI’s Behavioral Analysis Unit based in Quantico, Virginia," the release stated, noting that the motive was "under investigation by the Homicide Unit in consultation with the FBI's Behavioral Analysis Unit" and that it was known that the perpetrator had "considered the actions of other mass murderers."

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