
A former Monument Academy secondary-campus art teacher is fighting back against accusations tied to a brutal Halloween-night stabbing in Colorado Springs, entering a not-guilty plea to first-degree murder and a slate of violent-crime charges. The case, which rattled the normally low-key Patty Jewett neighborhood north of downtown, is now headed deeper into the court system as the defendant remains in custody and awaits a summer return to El Paso County Court.
Arraignment and charges
On Tuesday, Matthew Wyatt Regnier pleaded not guilty to first-degree murder, two counts of attempted first-degree murder, two counts of first-degree assault and child abuse. Court paperwork and local reporting indicate the plea was entered in El Paso County Court, with a status review set for August, according to KKTV.
Police: what they say about the scene
Officers responding to a 911 call found a grim scene at a home in the 1400 block of North El Paso Street. One man and two women were suffering from life-threatening stab wounds, while a second man had minor injuries and a young child in the home was physically unharmed. The three critically injured adults were rushed to local hospitals, and the man later died of his injuries, according to details reported by KRDO.
Victim identified and evidence under review
Authorities later identified the man who died as 31-year-old Raymundo Medina-Cabrera. Court documents and local coverage state that Regnier told officers he acted in self-defense. Detectives, however, say cellphone video and physical evidence collected at the scene do not match that account, as reported by the Colorado Springs Gazette.
School response
Monument Academy confirmed that Regnier had been employed as an art teacher at its secondary campus and that his employment was terminated following his arrest. School officials told reporters the administration is cooperating with the investigation and acknowledged the case has been deeply unsettling for students and staff, according to KRDO.
Legal next steps
With a not-guilty plea now on the record, the case moves into the familiar but high-stakes grind of pretrial proceedings. Prosecutors and defense attorneys will continue reviewing evidence and exchanging discovery material ahead of the August status review, as reflected in court records and local reporting. The arraignment and plea were first detailed by KKTV.
Neighbors and tips
Residents describe the Patty Jewett area as a typically quiet, close-knit pocket of Colorado Springs, and many said the heavy police presence and crime scene tape in the days after the attack felt surreal. Law enforcement is still fielding information from the public, with the Colorado Springs Police tip line and Crime Stoppers open to anyone who may have seen or heard something useful. Contact details are listed in the report from KOAA.









