EAST LANSING, Mich. (Michigan News Source) – Law enforcement is asking for assistance in the investigation into Monday night’s fatal shooting at Michigan State University.

They are gathering video evidence that could show the suspect on a possible route he may have taken to leave MSU and East Lansing, specifically along Grand River Avenue.

MORE NEWS: Branching Out: Michigan’s Tree Grant Grows Greener Than Ever

Police believe he headed to Michigan Avenue to Harrison Road to Lake Lansing Road and continued to walk west.

Police believe potential video evidence might have been captured between 8:25 p.m. and midnight.

Anyone who locates images or videos that could help the investigation should contact the East Lansing Police Department at 517-319-6876 or the FBI.

Police say 43-year-old Anthony McRae killed himself after he shot and killed three students and injured five others.