ST. CLOUD, Minn. — The Minnesota mall attacker showed no emotion and said nothing as he stabbed at Ryan Schliep’s scalp, Schliep said Monday.One of 10 people who suffered wounds that were not life-threatening before the attacker was fatally shot, Schliep told WCCO-TV that the man “just walked right at me” before striking quickly and penetrating the skin.“He looked just blank in the eyes like he wasn’t even there,” Schliep said shortly before being released from a St. Cloud hospital.Authorities are treating Saturday’s stabbings at Crossroads Center Mall, as a possible act of terrorism, in part because an Islamic State-run news agency claimed that the attacker was a “soldier of the Islamic State” who had heeded the group’s calls for attacks in countries that are part of a U.S.-led anti-IS coalition.But it wasn’t immediately known whether the extremist group had planned the attack or knew about it beforehand. St. Cloud Police Chief Blair Anderson said Monday the attack appeared to be the work of a single individual and there was no sign that the attacker, identified by his father as 20-year-old Dahir Adan, was radicalized or communicated with any terrorist group.