The former Charger, Dolphin and Patriot linebacker died at his California home on Wednesday.
Former NFL star Junior Seau was found shot to death at his home Wednesday morning in what police said appeared to be a suicide.
Police Chief Frank McCoy said Seau's girlfriend reported finding him unconscious with a gunshot wound to the chest and lifesaving efforts were unsuccessful. A gun was found near him, McCoy said.
Seau's mother appeared before reporters, weeping uncontrollably.
"I don't understand ... I'm shocked," Luisa Seau cried out.
Her son gave no indication of a problem when she spoke to him by phone earlier this week, she said.
"He's joking to me, he called me a 'homegirl,'" she said.
"Everyone at the Chargers is in complete shock and disbelief right now. We ask everyone to stop what they're doing and send their prayers to Junior and his family," the team said in a statement.