(Portland, OR) -- A threat against the Creative Science School in southeast Portland by a former student caused a lockdown on Monday. The school was told the 13-year-old was wearing tactical gear, had a gun and was threatening a shooting at the school. The building was placed in lockdown and administrators called 911. Police found the teen six blocks away wearing a tactical vest, goggles and he was carrying what appeared to be a Glock handgun. He surrendered to police. The gun was a replica. The suspect was arrested and taken to the Donald E. Long Juvenile Detention Center.