Officers responded just before midnight on Saturday to the area near Rose Street and South Williams Street.
"We come together as a team and collaborate and try to act as quickly as we can to identify injuries and treat them accordingly."
The shooting happened in the 1200 block of Brickfield Drive.
The "series of homicides" occurred Monday at two residences and a business in Muscatine, police said.
Courthouse shooting suspect Gwendolyn White has been committed to a hospital in Butner for evaluation.
The victim was shot in the lower body and taken to a hospital, where he was expected to recover.