Kansas City Chiefs Player Javon Belcher - Murder Suicide at Arrowhead Stadium - Video

Update, 11:04 a.m.: It looks like the original guesses were correct: CBS's Jason La Canfora is reporting the player in question was Jovan Belcher. Belcher was a four-year veteran, and had started 44 of the team's 59 games during that span. His player bio is here.

Update, 11:20 a.m.: Belcher may have committed suicide in front of Romeo Crennel and Scott Pioli.

Update, 11:47 a.m.: Recent pictures of Belcher, his girlfriend and their child, uploaded to his Facebook page. The caption reads, "Happy Thanksgiving from my family to yours." There is also a Walmart baby registry for Kasandra Perkins & Jovan Belcher, set for 9/11/2012. The police have yet to name the first victim.

Jovan Belcher, a Long Island, NY native and alum of West Babylon High School, is reportedly the gunman involved in a murder-suicide that happened outside the Kansas City Chiefs practice facilitates early Saturday morning, according to KWHB's Kevin Kietzman of Kansas City. KMBZ's Danny Parkins was one of the first media personal on the scene that reported the shooting.

According to information collected by the SB Nation blog Arrowhead Pride, Belcher, a starting linebacker for the Chiefs, shot and killed his girlfriend and then drove to the Chiefs' practice facility where he ended his own life. Blecher apparently was met by Chiefs' coaches in the parking lot before he committed suicide.

Belcher, 25, played football and wrestled at West Babylon High School. Belcher lined up as a linebacker, offensive tackle, nose guard and fullback for the Eagles.

According to this recent article by Chiefs Insider Reid Ferrin, Belcher was a four-year starter for the Maine Black Bears and was not picked in the 2009 NFL Draft. Kansas City signed Belcher as an undrafted rookie using him mainly as a practice squad player and on special teams.

Four years later, Belcher developed into an every-day player for the Chiefs, who has featured him in the starting lineup in every game since '11.