A 17-year-old boy, a 22-year-old man and a 24-year-old woman all died from multiple gunshot wounds after being shot at this home in the 10200 block of South Ewing on Sunday. A police source said a man in the home acted in self-defense after the trio broke into the home. | Mitch Dudek/Sun-Times

Three people were killed in a Sunday evening shooting in the East Side neighborhood on the Far South Side.

A police source said a man shot the three people after they broke into his home. No charges have been filed against the homeowner, who had a valid Firearm Owner’s Identification card.

Police, however, are still trying to confirm that account.

“We have noticed inconsistencies in his story and detectives are continuing to investigate,” police spokesman Anthony Guglielmi said Monday morning.

“We’re in the middle of the interrogation,” Guglielmi said, noting that he could not share any additional details. “We’re pressing pretty hard.”

Guglielmi said the man is 31.

Narcisco J. Ledesman, 22; a 17-year-old boy, and a 24-year-old woman all suffered multiple gunshot wounds to the body at 5:32 p.m. in the 10200 block of South Ewing, according to Chicago Police and the Cook County medical examiner’s office.

The medical examiner’s office has not released the names of the other two victims, pending notification of family.

Police entered the residence and found the homeowner locked in a basement bedroom and the bodies of the three people on the ground, NBC5 News reported. Police were investigating the shooting as self-defense. Area South detectives were conducting a homicide investigation.

Ald. Susan Sadlowski Garza’s 10th Ward office is about three blocks south of the home where the shooting occurred.

“Right now they’re calling it self-defense,” she said, noting that she’d received details about the shooting from the commander of the 4th District police station.

“I an understand people’s fear,” she said, relating to how the homeowner said he reacted after finding intruders inside his home.

Sadlowski Garza could offer no additional details.

The shooting happened on the same block as St. Francis de Sales High School and steps away from 103rd and Ewing, where a bus picks up students who attend Catholic schools in other parts of the city, according to one local resident.

It was unclear whether the intruders were armed, NBC5 reported. No other injuries were reported in the shooting.

Ivan Real, who told NBC5 he is a close friend of the homeowner, said there have been a lot of home invasions in the neighborhood recently.

“There have been a lot of home invasions in this area, so that didn’t come to me as a surprise, but I’m flabbergasted because it happened to one of my close friends,” Real told NBC5 News. “I’m really just concerned for my friend and glad he’s OK.”