The apparent motive? “The group gets all the good girls,” according to a Sumner County, Tenn., detective.

The 17-year-old boy’s mother notified police when she found a folder in his room labeled “Operation Death Strike,” and discovered it contained details of an alleged plot to ambush the boy band at an upcoming concert.

According to the Gallatin, Tenn., News Examiner, detectives described a “pretty detailed plan” that included robbing a local gun store, “taking out” the store’s owner, and then heading to Atlanta with an arsenal for a showdown with ‘N Sync at the Philips Arena.

From there, the goal was to open fire on the band and anyone else in his way.

The folder also contained drawings, plans for dealing with law enforcement if he was discovered, and references to local high school girls. Police notified their families as well as school officials as a precautionary measure.

Sumner County Sheriff’s Capt. Don Linzy told the News Examiner that the boy’s writings indicated that his hatred of ‘N Sync stemmed from jealousy.

Citing the carnage at Columbine High School near Denver last year, Linzy had nothing but praise for the mother who turned in her own son.

“I know it’s never an easy thing to do, but she did the right thing in alerting authorities. She found something disturbing and took action,” Linzy told the newspaper.

“I can’t praise her enough. We don’t know what his real intentions were, but you never know what might have happened.”