Officials identified the men as property manager Steven Weigensberg, 53, and maintenance worker Juan Medina, 53, at the Dana Point Condominiums.
ARLINGTON HEIGHTS, Ill. — A condo maintenance worker shot and killed his supervisor Friday afternoon in a utility room at the Dana Point Condominiums before turning the gun on himself, Arlington Heights police said. Officers were called around 4:30 p.m. to the 1500 block of East Central Road, where both men were pronounced dead at the scene.
The killings have jolted a large residential complex that rarely sees violent crime and thrust a workplace relationship into a criminal investigation now focused on motive and timeline. Authorities identified the victim as Steven M. Weigensberg, 53, a property manager who lived in Naperville, and the shooter as Juan Medina, 53, a maintenance employee. The Cook County medical examiner’s office ruled Weigensberg’s death a homicide from multiple gunshot wounds and said Medina died of a self-inflicted gunshot wound. Detectives are reviewing building records, surveillance access logs and employee schedules as they map out the events leading to the shootings.
Police said a 911 caller reported two unresponsive men in a basement utility area just after 4:30 p.m. on Friday. Responding officers found Weigensberg and Medina in a work space below one of the mid-rise buildings at the complex near Central and Busse roads. Investigators recovered a handgun at the scene. Residents described the sound of a sharp series of bangs followed by silence. “I would never expect it,” said resident Zain Saddle, who has lived in the development for years. “This is the last place I’d think something like this would happen.” Another resident, Scott Kilsdonk, said he saw police rush into the building and tape off a service corridor that is usually locked.
Weigensberg and Medina worked together at the property for about five years, according to police and building staff. Officials said there were no reports of an active dispute earlier in the day, and they have not released information about any recent discipline or complaints involving either man. The medical examiner’s findings noted Weigensberg suffered multiple gunshot wounds. Medina was found with a single gunshot wound to the head. The men were discovered in an area accessible to maintenance personnel and managers, not to residents, according to officers who canvassed the scene. The condo complex, which lists the address as 1519 E. Central Road, includes several buildings laid out around interior courtyards and shared mechanical rooms. Investigators said no other injuries were reported and no shots were fired outside the building.
Neighbors described Weigensberg as visible and hands-on in the common areas, frequently speaking with contractors and residents about repairs. Friends and former colleagues said he had a reputation for being patient under pressure and attentive to complaints. Family members confirmed he was 53 and a father who split his time between Naperville and the Arlington Heights property for work. In the days since the shooting, mourners have posted messages and photos remembering his work ethic and generosity. A funeral home obituary lists his date of death as Nov. 21. Community members have set up an online fundraiser to assist his family with expenses; organizers said the response underscores how many people he knew through his building work and volunteer efforts.
Arlington Heights police said detectives are interviewing coworkers, reviewing timecards and checking whether security cameras captured the men entering the utility area. Investigators are also checking whether Medina legally owned the handgun recovered at the scene and whether any recent calls for service at Dana Point involved either man. While police said they are confident the evidence supports a murder-suicide, the department will forward its full case file to the Cook County state’s attorney’s office for routine review once autopsy reports and ballistics testing are complete. The department also plans to compile a supplemental report on workplace safety procedures at large residential complexes, according to a spokesperson.
Friday’s killings came during a typically busy period for maintenance teams preparing buildings for winter. Longtime residents said the utility rooms bustle with contractors and carts of filters and valves each November. The Dana Point complex, a 1970s-era development along East Central Road, has hundreds of units and relies on a small in-house maintenance crew. Police said no residents were evacuated, but entrances to several buildings were temporarily restricted as detectives processed the scene. Firefighters staged in the parking lot as evidence technicians photographed the utility corridor, measured bullet strikes and collected shell casings.
Authorities said no criminal charges will be filed because the alleged shooter is dead. The case will remain open while laboratory work is finished and while detectives await any additional tips. The medical examiner issued the homicide and suicide rulings over the weekend. Police anticipate releasing a final incident synopsis after they finish interviews with building contractors who were on site Friday and after they complete a timeline that tracks key card access into the mechanical areas. Officials said they plan to brief the homeowners association board and property management company at a closed meeting early next week.
Residents who crossed paths with the two men portrayed a workplace where the pair often handled different tasks but interacted daily. “Steve was always around,” said resident Ana Ruiz, who recalled seeing him check boiler lines and elevator notices days earlier. “He’d stop and ask if everything was okay.” A maintenance vendor who asked to be identified by first name, Carlos, said Medina showed him storage rooms and explained where parts were kept. “He knew every inch of those basements,” he said. Late Friday, bouquets appeared near a service entrance. By Saturday morning, handwritten notes lined the window of the management office, and a maintenance cart sat idle behind yellow tape in the garage ramp.
As of Thursday morning, police said the building remains open and staffed with additional security, while detectives continue to verify the path both men took into the utility area. The next public update is expected after the department completes interviews and receives final lab results. Officials said their focus is on finishing the timeline and closing the case for the record.
Author note: Last updated November 27, 2025.