and that's where molly hennenberg is standing right now. how was this guy able to get inside with a gun, molly? >> hi, jon. he wasn't known or expected to be a dangerous or high risk visitor so he wasn't searched or wanded when he came in. he was known to the hospital as warren davis. police told us later that was an alias, as you said, jon, his actual name is paul warren partis. hospital officials here say most hospitals including johns hopkins do not have screening equipment. they say "it's not realistic to have them and the accompanied armed staff to watch them at over 80 loading docks, emergency exits at a health care center." still here at johns hopkins, they intend to review and evaluate their security procedure. >> how is the doctor recovering now, molly? >> his name is dr. david cohen, said to be in his mid 30's. he's a spinal specialist. he took one gunshot to the lower chest, upper abdomen region. he was immediately rushed into the operating room by his