Colorado mother charged with murder in teen's alcohol death

A 16-year-old girl who was reportedly afraid she was going to die became the center of an unusually severe murder case in Colorado, after prosecutors said her mother helped sustain the drinking that killed her.

Gretchen Leanne Ryan, 55, was charged on May 15 with one count of second-degree murder in the death of her daughter, Grace Ryan. Arvada police and fire responded to the 6400 block of West 85th Avenue on March 9 at about 8:15 a.m. and found the teenager unresponsive. She was pronounced dead at the scene. Prosecutors later said the death was tied to chronic alcohol use, a finding that turned the case from a tragic overdose-style death into a homicide investigation with murder allegations at its center.

The charging decision rests on what investigators say was a long pattern of endangerment, not a single bad night. According to the allegations, Grace had been supplied with alcohol over a prolonged period, and digital evidence allegedly showed mother and daughter drinking alcohol and cannabis together while discussing alcohol on an almost daily basis starting in September 2025. Prosecutors also said Ryan helped arrange alcohol deliveries to the home and helped hide her daughter’s drinking from Grace’s father. One account of the affidavit said detectives saw a vodka bottle visible on the floor, and Ryan reportedly told investigators, “I honestly think she’s been stealing my vodka.”

The medical evidence was just as stark. A Jefferson County forensic pathologist determined the cause of death was aspiration pneumonia related to chronic alcohol use. Reporting on the autopsy said Grace had an abnormally fatty liver, a condition investigators said could point to extensive and prolonged alcohol consumption. Prosecutors described severe health problems before her death, including vomiting blood, difficulty eating, difficulty walking and the use of diapers. They also said Grace repeatedly told her mother she was afraid she was going to die and asked for help, but assistance was not called until the following morning.

Additional reporting said prosecutors believe Ryan even unenrolled Grace from school so the two could drink together every day. That detail deepened the picture investigators were building: not an isolated lapse, but a home environment where alcohol was allegedly woven into daily life and hidden from the outside world.

Ryan was booked into the Jefferson County Jail on a $500,000 cash-only bond. A preliminary hearing was scheduled for June 17 in Jefferson County District Court, where prosecutors will have to show why a death tied to alcohol exposure, neglect and medical collapse is being treated not as manslaughter, but as murder.