Green valley Christian school was placed on lock down Friday. The school was locked down as police searched the area for an armed robbery suspect. Earlier in the day a victim had a bicycle stolen at knife point. Later he spotted the 4 robbers brandishing a pistol grip rifle in the area of Landis and Carey Avenues near the school. After a search of the area officers arrested four teens ages 14 to 17 and booked them into juvenile hall on conspiracy, robbery, possession of a defaced firearms, and brandishing charges.