reuters.com/video/2012/07/20/massacre-in-colorado?videoId=236601265&videoChannel=1(Reuters) - Massacre in Colorado. The grieving gather outside a hospital after a gunman killed at least 12 people in a Denver suburb at a midnight showing of the new Batman movie. About 50 people including children were wounded in the attack. A friend of a witness describes the scene. (SOUNDBITE) (English) BRITTANY JACKSON, FRIEND OF WITNESSES, SAYING: "As they were leaving he witnessed a baby, an infant getting shot. But yeah they said, gas bombs as they were leaving and then just gunshots all over the place and it started in the there that I had so it is kind of a mind blower." Dr. Frank Lansville -- A doctor at the Medical Center of Aurora says four people are in critical condition.