Police say a confrontation after a party ended with a fatal stabbing.
WEST VALLEY CITY, UT — Police in West Valley City arrested a 39-year-old woman after a man was found dead on a neighborhood sidewalk on Christmas morning, Dec. 25, 2025. Investigators said the man suffered an apparent stab wound and followed a blood trail that led them to a nearby home.
The death shook a residential area on a major holiday and quickly turned into a homicide investigation. Detectives said the case centered on events from a late-night party that stretched into early Christmas morning, including an earlier call for police service and a confrontation outside the home. By Thursday afternoon, police said they had arrested Fabiola Lara of Kearns on suspicion of murder in the death of her boyfriend, 45-year-old Jose Humberto Alvarado.
West Valley City police and emergency crews responded shortly before 8 a.m. to a report of an unconscious person near 4500 West and Thayn Drive, close to 3935 South, authorities said. The caller was a person walking a dog who saw someone on the sidewalk and believed the person needed help, Lt. Michael Johnson said. Responding crews found Alvarado dead at the scene, and investigators noted what they described as an apparent stab wound to his shoulder. Police said evidence at the scene, including a trail of blood, pointed them toward an address on Atlas Way, where Alvarado had been at a party Wednesday night that continued into Thursday morning.
Police said the home tied to the blood trail had already been on officers’ radar hours earlier. Around 1:30 a.m., officers responded to a report of an incident at the party, according to police. In a written account shared by the department, police said people at the home confronted Alvarado after he was caught trying to remove leggings from an 11-year-old female relative of Lara. Officers arrived to investigate that report, police said, but Alvarado had left the area before they could contact him. Detectives later pieced together accounts from the home and concluded that Alvarado and Lara had a confrontation outside before he departed, police said.
Investigators said they believe Lara stabbed Alvarado during that confrontation and that he later collapsed on the sidewalk several blocks away. The distance between the place where the body was found and the Atlas Way address became a focus as detectives tried to reconstruct his final movements. Police did not immediately release details about the knife they believe was used, whether it was recovered, or how long Alvarado lived after he was wounded. They also did not immediately say whether anyone else at the party saw the stabbing, or whether surveillance video from nearby homes or streets captured any part of the encounter.
Authorities released Alvarado’s name and age on Thursday as they worked to notify family and confirm identification. Police described Lara as his girlfriend and said she was arrested for investigation of murder, a term often used in Utah to describe an arrest based on probable cause while prosecutors review the case for possible charges. Jail records and court filings were not immediately detailed in the initial police announcement, and officials did not announce a first court appearance time in the hours after the arrest. Police also did not release information about prior calls to the address on Atlas Way or whether officers had previously responded to reports involving the couple.
Christmas morning brought a visible police presence to a part of West Valley City that neighbors described as quiet. The area around 4500 West and Thayn Drive includes single-family homes, sidewalks, and neighborhood streets that are typically lightly traveled early on holidays. Johnson said calls for serious incidents can still happen on holidays, even as many residents are inside with family. The initial report came in after sunrise, as people began morning routines, including dog walks. Investigators moved between the sidewalk where Alvarado was found and the nearby home on Atlas Way as they tracked physical evidence and interviewed people connected to the party, police said.
The case also raised questions about what happened in the hours between the earlier call at 1:30 a.m. and the discovery of the body just before 8 a.m. Police have not said whether Alvarado sought medical help, whether anyone drove him away from the home, or whether he walked alone after the confrontation. They have not released an estimated time of death, and they did not describe the condition of the victim beyond the apparent wound and the blood trail that investigators followed. Officials also did not say whether alcohol or other substances were factors at the party, or whether detectives were seeking additional witnesses who may have left before officers returned later that morning.
For Lara, the arrest marked a swift escalation from an overnight disturbance call to a suspected homicide case by midday. Police have not said whether she contacted officers after the confrontation or whether she left the area before detectives arrived. Authorities also did not release statements from Lara or her attorney. Police said the investigation remained active as detectives worked to document the scene, collect evidence, and build a timeline of who was present at the gathering and what each person reported seeing or hearing.
As of Friday, Dec. 26, police said Lara remained the key suspect while investigators continued interviews and prepared the case for prosecutorial review. Any formal charges would be filed by the Salt Lake County District Attorney’s Office, and police signaled that additional details could be released after charging decisions and initial court proceedings. The next expected milestone is a prosecutor’s decision on whether to file murder or another homicide charge, along with any bail request and the scheduling of a first appearance in court.
Author note: Last updated December 26, 2025.