MADISON, WI (WSAU) Even as three men are set to go on trial, Madison police continue the search for two more suspects in the attack on Badger football player Montee Ball.

Police hope newly-released surveillance video photos will bring in some usable leads. Investigators say the men already arrested haven’t given up the names of the others.

Witnesses told police five men took part in the attack on Ball. He was left with a concussion.