On the morning of March 12, 2017, the bodies of two teenagers were found on the side of Old Pueblo Road near Pikes Peak International Raceway, south of Fountain, Colorado. Fifteen-year-old Derek Benjamin Greer, a Coronado High School student, was discovered alongside his best friend, 16-year-old Natalie Partida. Both victims had been shot at point-blank range in what authorities described as a brutal and premeditated double homicide.

The El Paso County Sheriff’s Office reported the teenagers had been taken at gunpoint and driven to the remote location where they were killed. Friends and family remembered Derek for a contagious laugh and a bright smile. Investigators later arrested multiple people in connection with the case. Diego Chacon was tried and sentenced to 65 years in prison; Gustavo Marquez, then 19, faced charges including first-degree murder, kidnapping, aggravated robbery, and child abuse resulting in death. Several others — Joseph Arthur Rodriquez, Marco Antonio Garcia-Bravo, and Alexandra Marie Romero among them — were charged on counts tied to the killings, and additional arrests were made on related charges.

Does anyone from the Fountain or Colorado Springs area have information about Derek’s last known movements or saw him and Natalie the day before March 12, 2017?