Eighteen-year-old Devon Minor was last seen leaving a Geneva College dining hall on Thursday. Minor's family and friends say he had posted a Facebook message about having a problem and saying nobody could help him.
About 30 volunteers searched the area around the school on Tuesday and found nothing.
College provost Ken Carson says Minor's roommates alerted administrators when they hadn't seen him by Saturday morning. Minor left behind his keys and cell phone.
Minor is from Clifton Heights, Delaware County, in eastern Pennsylvania. The school is in Beaver Falls, about 25 miles northwest of Pittsburgh.
