Robert Wayne McCullar, 39, walked away from the Denton State School in Denton, Texas, on the evening of February 20, 1995, and was never seen again. He had severe mental disabilities and functioned at the level of a five-year-old; he also suffered violent seizures that required daily medication, so his disappearance is classified as endangered.

At the time he left the facility at about 6:00 p.m. he was wearing a white button-down shirt with green stripes, khaki pants, white sneakers and a tan protective helmet. He had distinguishing scars on his abdomen and forehead. Despite multiple investigations over the years, no significant leads have emerged and his whereabouts remain unknown.

Anyone who was in the Denton area on February 20, 1995, or who may have information about Robert’s movements after he left the school is asked to contact the Denton Police Department.