— A dog’s fatal fall into a balcony railing led to the deaths of three people and a house fire Thursday, authorities said.

A Chicago man, identified as 37-year-old Charles “Jack” Killeen, was pronounced dead at the scene and another man, 39-year “Travis” Riggs, was in critical condition at Northwestern Memorial Hospital with burns over 80 percent of his body, authorities in Illinois said.

Three other people were hospitalized, authorities added.

The dogs, which were wearing harnesses, were found unharmed in a backyard, the Cook County medical examiner’s office said.

They were identified as Travis Riggs’ dogs, T.K.S. and Riggs T.I., and the owners of the other dogs, James and Amanda Sargent.

Killeen’s family has said he was in a relationship with Amanda Sorgent, a former co-worker at the restaurant Killeens own and owned.

Amanda Sogent was charged with murder and has been jailed without bail.

The restaurant and Killees house were evacuated.

Travis Riggs Killeena and Amanda Riggs Amanda Soggent were charged with two counts of murder and one count each of aggravated battery with a deadly weapon and aggravated battery by a former employee, according to the Cook county sheriff’s office.

The Sogents were also charged with possession of a deadly instrument, according the Cook district attorney’s office, but there was no information on whether the charges were pending.

The victims were identified Thursday as Thomas Moseley, 43, of Chicago, and his wife, Karen, 53, of the Windy City.

They had been married since August of 2012.

Thomas Moselyk was a restaurant manager, according with his LinkedIn profile.

He is survived by his wife Karen, and two children.

Amber Mosele, 53; James Moseles, 42; and Amanda Moselis, 53 were also killed, authorities have said.

All three victims lived in the same house in the 2200 block of South Wabash Avenue, a few blocks from where the dogs were found.

The Sogens lived at the same address.

Neighbors described the house as an older, rundown house with a pool in the backyard, according a Chicago Sun-Times article from last week.

The property is on a cul-de-sac and is not well maintained, said neighbor Michelle Stansbury, who lived next door to the house.

The couple’s four dogs were living in a crate at the time of the fire, she said.

They were not taken into custody, but are being cared for by a family member.

The fire department was called to the home about 6 p.m. and was able to extinguish the fire by the time firefighters arrived, the sheriff’s department said.