Three schools in Sparks were placed on a lock down for about a half hour after an armed suspect briefly holed up inside a nearby house. The lock down began shortly after 10 a.m. Wednesday at Agnes Risley Elementary and Sparks Middle schools. Alice Maxwell Elementary was added shortly after but the lock downs were lifted just after 10:30 a.m. Sparks police say the suspect initially refused to come out, but cooperated with officers after a police negotiator arrived.