The gunfire happened about 9 p.m. in the 1900 block of East Fairmont Street, police say.
Two face felony counts following the Allentown incident.
The victim in the Allentown gunfire was expected to survive, according to police.
The victim was bleeding heavily and had relayed a roommate was trying to break down a door.
Bail was set at $50,000.
City police worked three crime scenes, a news release says.
Walter Martinez, 27, pleaded guilty to murder of the third degree for the fatal 2019 robbery outside Chicago Sports Bar & Grill on Airport Road.
The victim in the late-night Friday gunfire was expected to survive.
Investigators said tips may be submitted anonymously.
Charles Roca had been an assistant chief since August 2020.
Jamett Antonio Rivera, 21, entered the plea in the shooting death of Elijaah Rodriguez, 18.
Jahmel Anthony Crews, 27, is one of two people accused in a 2019 homicide outside Chicago Sports Bar & Grill.