The late Junior Seau's younger brother Tony has died, according to U-T San Diego.
The family told the paper that Tony Seau, 36, died Thursday of an unknown cause.
Junior Seau, a former All-Pro NFL linebacker, took his own life in May 2012 at his Oceanside home. It was later determined that he had a degenerative brain disease.
Tony Seau was a defensive tackle at El Camino High School in Oceanside, and played defense at Palomar College in San Marcos. He also played offensive guard for the North County Cobras, a semi-pro minor league team in Oceanside.