Three shootings in the city since Friday night have left a 21-year-old man dead and three people hurt, Chicago police said.
The fatal shooting happened about 8:30 p.m., Chicago Police Department News Affairs Officer Ron Gaines said.
Officers found the man in a hallway of a three-story apartment building in the 3900 block of North Central Avenue, in the Northwest Side's Portage Park neighborhood.
He was taken to Our Lady of the Resurrection Medical Center, where he was pronounced dead at 8:58 p.m., according to the Cook County medical examiner's office.
The medical examiner's office identified the man as Manuel Hernandez and listed his address as where the shooting happened.
A woman entering the building found Hernandez on the floor of the vestibule, according to a police report.
When she tried to push the door open, the victim, whose back was up against the entry door, fell over and she asked him if he was OK, according to the report.
She called 911 and responding police officers looking around the building found a bullet hole in the front door of his home, the report said. A relative told police she'd last spoken with Hernandez at 5:05 p.m. and he'd told the relative he was on his way home, the report said.
Other officers searching the building spoke with at least two people, one of whom said they heard three or four shots, and another person who'd heard two gunshots. The victim's bicycle was found on the north side of the building, according to the report.
Later, as snow coated Central Avenue and several squad cars parked near the scene, police searched for evidence and photographed a bike lying by an entrance on the building's north side.
It appeared the man had collapsed shortly after being shot near where the bike was found, police said.
Police have launched a homicide investigation in the shooting.
In a separate shooting, a 19-year-old and a 20-year-old were wounded about 11:30 p.m. in an alley west of the 5200 block of South Fairfield Avenue.
Someone opened fire from inside an SUV as the two walked home from a party, striking the 19-year-old man twice in the back and the 20-year-old man in the stomach and arm, police said.
The 19-year-old was taken to Mount Sinai Hospital, and the 20-year-old was taken to John H. Stroger Jr. Hospital of Cook County. Police said their conditions had stabilized.
The shooting happened in the Gage Park neighborhood on the Southwest Side.
A female was also shot in the foot just before 5 a.m. near the intersection of West 16th Street and South Kedvale Avenue in the Lawndale neighborhood, police said.
She appeared to be in her early 20s, Chicago Police Department News Affairs Officer Robert Perez said.
Further information about her condition was not immediately available.