GREELEY, Colo. (AP) -Adam Matthews, a former star running back at Northern Colorado and the son of ex-NFL running back Bo Matthews, died at his home Thursday. He was 25.

He died in Thornton of a seizure, school spokesman Eric Scott said. He had no other details.

Adam Matthews was the second-leading rusher in school history. He held the record for most yards rushing in a season (1,653 in 2003) and yards rushing in a game (279 against Adams State in 2003). He tied an NCAA record in 2003 with 11 straight 100-yard rushing games.

``This is a terrible, terrible tragedy,'' said Northern Colorado running backs coach Keith Grable, who coached Matthews from 2000-03. ``I feel sad for his family, friends, teammates and everyone who knew him because he touched a lot of hearts.''

After college, Matthews spent time with the St. Louis Rams and Houston Texans, although he never played in a regular-season game. He also played for the Hamburg Sea Devils of NFL Europe.

Matthews' brother, Asa, is a junior linebacker for Northern Colorado, which jumped from Division II to Division I-AA this season.

Bo Matthews starred at Colorado from 1971-73 and played in the NFL for Miami, San Diego and the New York Giants.

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