Jason La Canfora of CBSSports.com reports that Kansas City Chiefs four-year veteran linebacker Jovan Belcher (25) was the unidentified player who shot his girlfriend around 8AM CT then drove to Arrowhead Stadium and committed suicide.

La Canfora further reports that KCPD Officer Darin Snapp confirmed that Chiefs GM Scott Pioli and head coach Romeo Crennel were outside the facility at the time of the shooting and tried to prevent Belcher from shooting himself.

The Kansas City Star writes that when Belcher shot his girlfriend, the girlfriends mother reportedly witnessed the shooting before Belcher got in his car and drove to Arrowhead.

Belcher originally joined the Chiefs as an undrafted free agent out of Maine quickly becoming a starter in his rookie season. In ten games started this season Belcher had 38 tackles and led a pretty quiet life off the field.

The Chiefs are scheduled to take on the Carolina Panthers at Arrowhead tomorrow at 1PM ET. So far the NFL has informed to the Panthers to board their charter flight to Kansas City.

h/t: CBS Sports, Kansas City Star