BEND, OR -- Bend Police say the man who allegedly shot a transient several times in a fast food drive-thru was legally carrying his firearm and is cooperating with the investigation.

Investigators say 39-year-old Christopher Nolan pulled a knife on 39-year-old Robert Garris, of Medford, just after 9:30 Monday night. Authorities say the confrontation was unprovoked at the Jack-in-the-Box restaurant on NE Third, and the two did not know each other. Garris pulled out his handgun and fired several times, striking Nolan. 

Police say the investigation is ongoing and will be reviewed by the Deschutes County Sheriff's Office.