(KRON) -- An ongoing dispute between coworkers at a business in San Rafael’s Northgate One Shopping Center turned deadly Monday afternoon, according to authorities. San Rafael police and fire department personnel responded to an emergency call just after 1 p.m. that reported an unconscious man on the south side of the shopping center, in the 700 block of Las Gallinas Avenue. Arriving paramedics found the victim suffering from an apparent stab wound and being tended to by good Samaritans. Despite life-saving efforts by paramedics, the man succumbed to his injuries after arriving at an area hospital. Sonoma school community upset over Pride flag removal The victim’s name was not released by officials as of Tuesday morning. Detectives beginning the investigation noticed that the victim’s clothing indicated that he worked for a business within Northgate One. Shortly after, Justin Amilcar Gutierrez-Navarette, 20, of Richmond, contacted San Rafael PD to arrange his surrender to police, authorities said. “Investigators learned that Gutierrez-Navarette and the victim were coworkers who had been involved in an ongoing dispute,” SRPD wrote. On Monday afternoon, “the dispute escalated into a physical confrontation, during which Gutierrez-Navarette stabbed the victim. Following the altercation, the victim fled through the rear entrance of the business before collapsing outside in the 700 block of Las Gallinas Avenue.” Gutierrez-Navarette was arrested and booked into the Marin County Jail on suspicion of murder. ...read more read less