A Santa Rosa man was arrested Tuesday on suspicion of trying to steal a bike on the Santa Rosa Junior College campus and then striking an instructor who reportedly caught him in the act.

At about 2 p.m. Tuesday, the instructor, who was not identified by police, reportedly saw two men, one of whom was later identified as Adam James Demir, 29, of Santa Rosa, using bolt cutters to cut a cable lock off a bicycle on a rack on Scholars Drive near Bussman Hall.

After contacting campus police, the instructor tried to get photos of the two men using her cellphone. According to the SRJC Police Department, the suspects walked away from the bike rack but Demir allegedly slapped the cellphone from the instructor’s hand.

Demir was later arrested walking north on Nordyke Avenue, at Sucher Lane, about four blocks away. Police said Demir was carrying bolt cutters and drug paraphernalia. He was booked into county jail on suspicion of attempted petty theft, possession of burglary tools and possession of drug paraphernalia.

Police are seeking help in finding and identifying the second man and released a photo of him to the public. They said that anonymous tips could be called into the department at 527-1000 or online at www.santarosa.edu/administration/college-safety/district-police/report-anonymous-tips.