WASHINGTON (AP) — A man who shot and killed a teenager minutes after meeting her in person for the first time after encountering her on a website has been sentenced to 22 years in prison.

Alexander Buckley, 22, of Washington pleaded guilty to second-degree murder while armed in the death of  Siohban Lee, 18, of Takoma, Md. He was sentenced Thursday in D.C. Superior Court.

READ MORE: Maryland Weather: Rain Showers Continue But Expect A Sunny Weekend

According to the government’s evidence, Buckley and Lee met through a social website and eventually, exchanged phone numbers.

READ MORE: Traffic Advisory For US 50 East Before Bay Bridge

Lee agreed to meet Buckley for the first time early on Jan. 25 in northwest Washington. Prosecutors say Lee and Buckley met at 2:15 a.m. and at 2:30 a.m., he shot Lee once in the head. He took her iPhone and ran away, but was caught by police hours later.

MORE NEWS: Video Shows Squeegee Worker Assaulting A Driver At Busy Baltimore Intersection

(Copyright 2013 by The Associated Press. All Rights Reserved.)