One woman was killed and four others were injured in Wednesday's shooting.
A gunman killed one and wounded four others in a mass shooting in an Atlanta medical center waiting room on Wednesday, police said.
The suspect, identified as 24-year-old Deion Patterson, was apprehended following an hourslong manhunt, police said Wednesday night.
Dr. Ahmed Ali, a radiation oncologist at the building, told ABC Atlanta affiliate WSB that he was returning from his lunch break when he saw armed officers swam the scene.
"I was worried what was happening," he said. "Building security … they told me gunshots were coming from the 11th floor. They said there was a pool of blood in the elevator shafts when the doors opened."
-ABC News' Ivan Pereira
Of the four people who were shot and injured, three are in critical condition and one is in the emergency department, according to hospital officials.
All four are adults, officials said.
One person was killed and four were injured in the shooting at Laureate Medical Center in Atlanta, according to police.
"Officers are actively searching for the suspect and any other victims," police said.
Northside Hospital tweeted that it's "cooperating with law enforcement following the shooting at our midtown #Atlanta location earlier this afternoon. We urge people in the area to shelter in place and follow instructions from law enforcement on the scene."
