Cooper also played for the Minnesota Vikings, Pittsburgh Steelers, Seattle Seahawks, Jacksonville Jaguars and Oakland Raiders.

On March 1, 2009, Cooper and three other men went missing after their boat capsized in rough seas near Clearwater, Florida.

[4] Cooper and wife Rebekah, who met while attending the University of Washington,[5] have a daughter named Delaney Christine.

Cooper was signed by the Oakland Raiders on November 5, 2008, after linebacker Robert Thomas was placed on injured reserve.

The boat was carrying four passengers: Cooper, Corey Smith, and two former University of South Florida football players, Nick Schuyler and Will Bleakley.

The Coast Guard began searching for the missing boat shortly after midnight on March 1, 2009.

By 1:35 p.m. local time on March 2, 2009, the boat had been located, overturned, with Schuyler clinging to it.

According to Schuyler, after the capsizing, he and the other three men, all wearing flotation devices, struggled overnight to remain on top of the capsized hull of the boat, with water reaching chest-high over the partially submerged hull and waves of approximately 6 ft (1.83 m).