the sheriff. >> we're not convinced that he acted alone. there's some reason to believe that he came to this location with another individual. and there's reason to believe that the other individual in some way be involved -- >> now, i've spoken to another law enforcement source who says there is a piece of evidence indicating there was another individual who they would like to talk to who was near the scene of the shootings. but according to my law enforcement source, they do not know if this individual arrived with the shooter. they do not know if he knew the shooter, had any connection at all with the shooter. he was in the vicinity. it is someone they are trying to find, what they want to talk to. at this hour, they have not yet been able to locate this individual. >> jeanne, that fine line between a suspect and a person of interest. this is a person of interest, they just want to speak to? >> the law enforcement person