Source: A bicyclist was killed in Lacombe on Sunday after a hit-and-run crash, and Louisiana State Police say they are seeking the driver who was involved. Darnell Davis, 20, died in the accident that occurred about 8:30 p.m. on Louisiana 434/Lake Road, about one mile south of U.S. 190, according to Trooper Nick Manale, a State Police spokesman. Davis was riding his bike north near the road's east fog line when a 1990 Mazda 626 approached from the rear. For unknown reasons, the car struck the bike with its right front corner, knocking Davis off the bike. Manale said Davis, who was not wearing a helmet at the time of the wreck, came to rest in the northbound traffic lane. The St. Tammany Parish Coroner's Office pronounced him dead at the scene, and the results of routine toxicology tests are pending. Meanwhile, Manale noted, the Mazda fled northbound, and troopers subsequently discovered the vehicle was abandoned in a parking lot near the intersection of Louisiana 434 and U.S. 190. Crime scene technicians from the State Police Crime Lab are collecting evidence from the vehicle, and investigators' efforts to both examine the events of the crash and identify the motorist responsible for Davis' death are ongoing, Manale added. Updated Source: Following an extensive investigation into the hit and run fatality, Troopers have placed 26 year old John Oalmann of Madisonville, under arrest on charges of Negligent Homicide, Hit & Run Driving, Improper Passing of a Bicycle, and Careless Operation. Oalmann was taken into custody without incident and was booked accordingly into the St. Tammany Parish Jail. Sunday evening at 8:30 pm, Troopers from Louisiana State Police Troop L began investigating a fatal hit and run crash involving a bicyclist on LA 434/Lake Road in St. Tammany Parish. The crash occurred approximately one mile south of U.S. 190 and took the life of 20 year old Darnell Davis of Lacombe, LA. Troopers’ investigation revealed that Davis was traveling north on LA 434 riding his bicycle near the east fog line of the roadway when, for unknown reasons, a 1990 Mazda 626 approached from the rear and struck the bicycle with its right front corner. After impact, Davis was ejected from the bicycle and came to rest across the northbound lane of LA 434. Davis was not wearing a helmet at the time of the crash and was pronounced dead at the scene by the St. Tammany Parish Coroner’s Office. Alcohol and/or drug impairment is unknown at this time pending toxicology results at the coroner’s office. Upon impacting the bicycle, the Mazda fled northbound and was later discovered by Troopers in a parking lot near the intersection of LA 434 and U.S. 190. Troopers are continuing their investigation into the events of the crash and efforts to identify the driver are ongoing. Crime scene technicians from the Louisiana State Police Crime Lab are actively collecting evidence from the suspect vehicle and anyone with information regarding the crash is urged to contact Troop L at 985-893-6250.