MONUMENT, Colo. (KKTV) – A man turned himself in to authorities after a deadly hit-and-run crash in Monument. The crash happened Nov. 4 in the parking lot of a McDonald’s east of I-25 off Baptist Road. When authorities arrived, they found 47-year-old Kristy Kerst. Medical aid was rendered to Kerst, but she passed away. The Monument Police Department requested help from the El Paso County Sheriff’s Office for the investigation.