A 20-year-old student broke into Mr Smith's house last Wednesday. He stole $1,000 and two rings. He escaped without anyone seeing him. The police arrested him two hours later. They charged him with burglary. A jury will try him next week. They might send him to prison for up to ten years. How did the police find him? Well, he chacked his Facebook account using the Smith's computer, but he forgot to log out before he left.