Developing in Chicago, a shooting at a hospital left three people dead including a rookie police officer.
Authorities say the gunman is also dead. It happened in the middle of the day broad daylight prompting parts of the hospital to evacuate while police rushed in to confront the suspect. Gunshots first reported around 3:30 Monday afternoon, terrified doctors and nurses - seen in video attached - rushed out of mercy hospital with their hands in the air.

Overnight a solemn procession for a fallen hero in Chicago. Officers lining the streets saluting the ambulance carrying the body of one of their own. Now identified as 28-year-old Chicago police officer Samuel Jimenez.

Doctor Patrick Connor said - about Officer Jimenez - , "We cannot thank him enough... for his courage and bravery today."

eyewitnesses say the suspect first opened fire in the hospital parking lot. .