Indiana opens the regular season Oct. 26 at home against Dallas.
Butler had been suspended indefinitely shorty after the incident.
The Colts fell to the Houston Texans in overtime Sunday night.
Hazell’s firing comes one day after the Boilermakers lost 49-35 to Iowa on Homecoming.
The game kicked off at 8:30 in Houston.
Brownsburg defeats Hamilton Southeastern 35-24.
Center Grove defeats Cathedral 44-41 in overtime.
Zionsville defeats Fishers 20-19.
Westfield defeats Brebeuf 37-21.
Lutheran defeats Washington 49-0.
Heritage Christian defeats Knightstown 32-13.
Kokomo defeats Tech 44-21.
Arlington defeats Broad Ripple 48-0.
Greenwood defeats Whiteland 21-10.