Officials say an overnight shooting in a downtown St. Louis office building killed one teenager and wounded nine others. St. Louis Metropolitan Police Commissioner Robert Tracy on Sunday identified the victim who was killed as a 17 year old. Survivors range from age 15 to 19 and their injuries include multiple gunshot wounds and grazings. Tracy says teenagers were having a party in an office space when shooting broke out around 1 a.m. Sunday. Tracy says another victim was trampled as people fled the building. Shell casings from AR-style rifles and other firearms were scattered on the ground.