The initial investigation indicated a 2003 Lincoln passenger car was traveling south on U.S. Highway 550. For reasons still under investigation the vehicle left the roadway and rolled. Both rear seat passengers were ejected from the vehicle and pronounced deceased on the scene by the office of the Medical Investigator. The driver and front seat passenger were transported to area hospitals for treatment. Their conditions and injuries are not known.
From New Mexico State Police
Monday, December 16, 2019:
On December 14, 2019 at about 10:30 p.m. the New Mexico State Police investigated a fatal crash on U.S. Highway 550 around mile post 168, north of Aztec.
The initial investigation indicated a 2003 Lincoln passenger car was traveling south on U.S. Highway 550. For reasons still under investigation the vehicle left the roadway and rolled. Both rear seat passengers were ejected from the vehicle and pronounced deceased on the scene by the office of the Medical Investigator. The driver and front seat passenger were transported to area hospitals for treatment. Their conditions and injuries are not known.
The rear seat passengers who died in the crash were identified as Marcelino Marquez (52) of San Juan, NM and Michael Tsosie (52) of Sweetwater, AZ. The male driver (18) and the male front seat passenger (19) both of San Juan, NM will not be identified at this time.
Alcohol is suspected in being a contributing factor to the crash, and seatbelts were not properly utilized. The crash is still under investigation by the New Mexico State Police Uniform Bureau and the New Mexico State Police Crash Reconstruction Unit. No additional information is available at this time.
The agreement authorizes NDOT to transfer $2,790,647 to NMDOT to administer procurement and construction of the NM371/N36 Intersection Improvement Project. This long-needed project will include roadway widening and the installation of a traffic signal and lighting system designed to reduce accidents, improve traffic flow, and enhance overall public safety for residents, school buses, emergency responders, and travelers who rely on this heavily used corridor.
The move will not affect the 2026 racing season in San Juan County. Live racing is scheduled for April 17 – May 24, 2026.
San Juan County has previously said that McGee Park and the San Juan County Fairgrounds would not be impacted by any changes at the casino and horse racing track.
The suspect, John Hannon, the child’s father, was arrested on 2/9/26 on unrelated charges. He was served with the following charges while at the San Juan County Adult Detention Center:
The rescue effort also received substantial financial support, from various donors. This outside support significantly reduced the financial impact on local resources and ensured the operation did not place a major burden on San Juan County taxpayers.
Crews arrived to find a structure on fire and the occupant inside. Despite a quick response from fire crews and efforts by San Juan County Sheriff’s Deputies, one occupant was removed from the structure by firefighters and transported to the hospital by San Juan Regional Medical Center EMS. The occupant was pronounced dead at the hospital.
Dr. Jackson-Dennison, an enrolled member of the Navajo Nation (Diné), brings nearly four decades of experience in educational leadership, with a career dedicated to advancing Indigenous sovereignty, self-determination, and academic excellence. Her leadership reflects a unique ability to integrate Indigenous knowledge systems with Western academic frameworks, a hallmark of her scholarship and professional practice.