Rhonda Branch and Antonio Allen smoked marijuana and nitrous oxide while their 3-year-old cried outside for over an hour.

After consuming cannabis edibles, Richard Kirk hallucinated and fatally shot his wife Kristine in front of their three children.

Levy Thamba, 19, jumped to his death from a Denver hotel balcony after eating a marijuana cookie.

Engre Louise Brown, under the influence of marijuana and alcohol, killed Benjamin Merscher in a head-on crash.

Scotty Rowles struck and killed Donald Collins after smoking marijuana; THC levels were above legal limit.

Caleb Floyd killed motorcyclist Blake Gaston while high on marijuana; toxicology showed nearly double the legal THC limit.

Timothy Durden killed Rosemary Tempel and injured another woman in a crash; marijuana evidence was suppressed pretrial.

Jayce Randall was high and drunk when he crashed, killing his nephew.

Dara Keo, impaired by marijuana and pills, struck and killed a cyclist.

Two toddlers drowned after adults using marijuana were too impaired to help.