ROCKLIN (CBS13) – Police arrested a middle school teacher on Friday for allegedly providing drugs and alcohol to minors.

An investigation into Ian Runciman, 38, began this week after a parent of a high school-aged teen told a school resource officer that his son visited Runciman’s apartment and was given marijuana and alcohol. Runciman teaches math at Granite Oaks Middle School.

“I was kinda shocked at first, ’cause I didn’t think he would be like that, ’cause he’s really nice,” said Taylor Reidt, a former student. “That’s kind of creepy, to be honest,” he added.

Police believe Runciman invited several of his former students to his apartment to smoke and drink. Some may have even had their own keys.

“I just think that’s really sad that it happens this close to home,” said Julie, a concerned parent.

Pictures on Runciman’s Facebook page show him smiling with his arms around young people who appear to be some of his students. Through their investigation officers discovered several other students, ranging in age from 15 to 17, who were identified as potential victims.

“He knows better; he knows better,” said Julie.

Runciman was booked into Placer County Jail, but is currently out on bail.

CBS13 went to Runciman’s apartment on Saturday and knocked on the door, but no one answered.

The investigation is still ongoing, and anyone with information is encouraged to call the Rocklin Police Department at (916) 625-5443.