An arrest report says Juan Carlos Orona claimed he blacked out during a confrontation over alleged infidelity before surrendering to police.
LAS VEGAS — A 29-year-old man accused of killing his girlfriend and her two children at a west Las Vegas apartment told detectives he blacked out during a confrontation over alleged infidelity and later realized he was holding a handgun, according to an arrest report released by police.
Juan Carlos Orona faces three counts of open murder with a deadly weapon and 10 counts of discharging a firearm into an occupied structure in connection with the Sept. 1 deaths. Police said the victims were Orona’s girlfriend, identified in the arrest report as Nohani Flores-Osuna, her 16-year-old daughter and her young son. Officers found all three dead inside an apartment in the 5100 block of O’Bannon Drive. Orona remained jailed as the case moved through Clark County court.
According to the Las Vegas Metropolitan Police Department arrest report, Orona contacted emergency dispatch at about 7:10 p.m. and said he was turning himself in for killing his girlfriend and her children. His father and brother had driven him to the Southeast Area Command substation. Orona’s father later told detectives that his son had contacted him and said he had harmed Flores-Osuna and the children. The father urged him to surrender, investigators said.
Officers responding to the apartment, near West Sahara Avenue and South Decatur Boulevard, forced their way inside and found the woman and two children with gunshot wounds. All three were pronounced dead at the scene. Police initially described the daughter as a teenager and the boy as younger than 10. Later reporting based on the arrest report said the boy was between 6 and 8 years old. Their names are being withheld here because they were minors.
Orona told detectives he had been in a relationship with Flores-Osuna for about three to six months and had been staying with her and her children, according to the arrest report. He also said he had helped pay rent on the apartment. Earlier on Sept. 1, Orona said he saw Flores-Osuna’s vehicle near a vehicle belonging to a former boyfriend. Investigators said Orona later confronted her at the apartment about whether she had been unfaithful.
The arrest report says Orona told police that Flores-Osuna acknowledged having a sexual relationship with the former boyfriend. Orona then claimed he blacked out during the confrontation. When he became aware of his surroundings again, he told detectives, he was in a bathroom holding his 9mm Glock handgun and Flores-Osuna and the children were on the floor. The account is Orona’s statement to investigators and has not been established as a motive or proven in court.
Police said Orona did not deny shooting the three victims but told detectives he could not remember whom he shot first or why he opened fire. Investigators said he acknowledged that he needed to surrender and answer for what had happened. Authorities have not independently established that Orona experienced a blackout, and prosecutors will have to prove the criminal allegations against him in court.
Crime scene investigators recovered 10 spent 9mm cartridge cases from the apartment, according to police. Detectives also searched Orona’s pickup truck and found a Glock 19 handgun inside a backpack. News3LV reported that investigators said ammunition associated with the firearm had the same headstamp as the cartridge cases collected inside the apartment. The evidence is part of the continuing homicide investigation.
Orona had a gunshot wound to his abdomen when officers encountered him at the police substation. He was taken to Sunrise Hospital for treatment before being booked into the Clark County Detention Center. Police initially described the wound as non-life-threatening. Authorities said it remained unclear whether Orona had shot himself, and no confirmed explanation for the injury had been released.
Orona appeared in court Sept. 3. A court-appointed public defender asked for additional time to review the case before a bail decision proceeded, according to local reporting. Orona remained in custody without bail following the hearing and was scheduled to return to court Sept. 9. The charges against him are accusations, and he is presumed innocent unless proven guilty.
Police described the shooting as an isolated incident and said there was no continuing threat to the public. Investigators were continuing to examine the evidence, statements and circumstances surrounding the deaths. No final determination about motive had been announced beyond the account Orona gave detectives after surrendering.
Author note: Last updated September 4, 2026.