here's wbbm's dave savini. >> chicago police! get on the floor! chicago police! get on the floor!reporter: police body cameras captured this night time raid in one of chicago's poorest neighborhoods. >> get on the ( bleep ) ground! >> reporter: heavy armed officers carrying assault weapons raided this home looking for a suspected drug dealer. instead, they found then-nine- year-old peter mendez at home with his family. >> it was like my life just flashed before my eyes. >> daddy! >> reporter: mendez says he and his little brother were traumatized during the raid, as his father was handcuffed and guns were drawn on them all. where did they point the gun at you? >> i want to say right here. but, you know, like, straight at it. >> reporter: chicago p.d. say they were acting on a tip from an informant who gave them this address. as police tore through their apartment, peter's mom grabbed the warrant. she told the officers they were in the wrong place. >> they live upstairs! that's the couple upstairs. >> reporter: peter mendez is one of 23 children that we've met through our year-long