FARMINGTON, Conn. (AP) _ Farmington police say they arrested a man who invoked the Newtown elementary school massacre in text messages he sent threatening to shoot an ex-girlfriend.

Farmington police say 31-year-old Darnell Davis of Avon threatened in messages sent on Dec. 17 to shoot his ex-girlfriend and her young son and carry out crimes similar to the massacres in Newtown and at Columbine High School in Colorado.

Davis was arrested Thursday on charges including second-degree breach of peace, threatening and harassment. He is being held on $750,000 bond. A phone number was not listed for Davis’ address.

Authorities say no guns were found at Davis’ residence and police do not believe he owns guns.

He was arrested on behalf of Hartford police who were investigating a complaint from Davis’ ex-girlfriend.

(Copyright 2012 by The Associated Press.  All Rights Reserved.)