Authorities have identified the family members killed in an apparent murder-suicide on Monday evening but are still searching for a motive.

As reported by the Tennessean, the Maury County Sheriff’s Office held a press conference on Tuesday in which Sheriff Bucky Rowland identified the five people found dead of gunshot wounds in a Columbia, Tennessee, home on Monday evening.

Sheriff Rowland identified the deceased family members as Cynthia Linn, 55, who is believed to be the shooter; 14-year-old Bo Li; 14-year-old Meigan Lin; 15-year-old Lia Lin; and 17-year-old Kaileigh Lin. All four children were adopted by Cynthia and her husband, who authorities declined to identify and may not have been living in the home at the time.

An adult biological son of Cynthia’s discovered the scene on Monday when he returned from work, the sheriff said at the press conference, noting that there did not appear to be any kind of distress call made from the home.

The sheriff told reporters at the press conference that authorities had not previously responded to any domestic incidents at the home. He also said that Cynthia was a stay-at-home mom who homeschooled her children.

This appears to be a loving home,” Rowland said. “It’s an immaculate home, and a very loving family. So a motive would be very important to know what would lead someone to do this to her loved ones.

“There was some information that was left, it was very brief and vague, that would indicate that it would be murder-suicide.”

Authorities are continuing to work to try and determine a motive for the tragedy.

CrimeOnline will provide further updates when more information is available.