K.C. Chiefs' Jovan Belcher kills girlfriend, self

At Belcher's mother's home on Long Island, relatives declined to talk to reporters. A purple SUV in the home's driveway was flying a small Kansas City Chiefs flag.

Perkin's Facebook page shows the couple smiling and holding the baby.

Belcher is the latest among several players and NFL retirees to die from self-inflicted gunshot wounds in the past couple of years. The death of the beloved star Junior Seau, who shot himself in the chest in at his California home last May, sent shockwaves around the league. Seau's family, like those of other suicide victims, has donated brain tissue from the linebacker's body for research to determine if head injuries he sustained playing football might be linked to his death.

Kansas City Mayor Sly James said that he spoke to Pioli after the shooting, and while he refused to discuss the GM's emotional state, the mayor said Pioli was "extremely concerned that fans of this team are not disappointed and not left in the cold."

"I think they think there's an obligation to the people of this city, the fans of the team and the fans of the other team to play the game," James said.

The season has been a massive disappointment for the Chiefs, who were expected to contend for the AFC West title. They're just 1-10 and mired in an eight-game losing streak marked by injuries, poor play and fan upheaval, with calls for Pioli and Crennel to be fired.

The Twitter account for a fan group known as "Save Our Chiefs" recently surpassed 80,000 followers, about 17,000 more than the announced crowd at a recent game.

Maine's head football coach, Jack Cosgrove, said Belcher was a "tremendous student-athlete."

"His move to the NFL was in keeping with his dreams," says Cosgrove. "This is an indescribably horrible tragedy."