Port Vincent man faces charges in traffic fatality Port Vincent man faces charges in traffic fatality Speed suspected as factor in fatal wreck River Parishes bureau March 16, 2014 Comments PRAIRIEVILLE — A hospitalized Port Vincent man faces negligent homicide and other counts after a fatal early morning crash Thursday on La. 42 in northeastern Ascension Parish. Dalyn P. Melancon, 24, over-corrected in a curve on La. 42 east of Joe Sevario Road about 7:30 a.m. Thursday and ran his westbound Ford F-150 pickup into an eastbound Nissan Altima, State Police troopers said in a news release. The 2007 Altima’s driver, Sheri B. Thompson, 56, of Prairieville, died of her injuries en route to the hospital, though she had been properly restrained in the Altima, troopers said. Melancon, who crossed the center line of the two-lane highway after reacting to his truck running off the road in the curve, is suspected of speeding, said Trooper Jared Sandifer, State Police Troop A spokesman. Troopers consider excessive speed a factor in the crash. Melancon was not properly restrained and suffered moderate injuries, troopers said. Once Melancon is released from the hospital, he will be taken to Ascension Parish Prison and booked on counts of negligent homicide, careless operation and not wearing a seat belt, Sandifer said. Troopers said they do not suspect that use of alcohol or drugs impaired either driver. Toxicology samples were taken from Melancon and Thompson and submitted to the Louisiana State Police Crime Lab for analysis, a procedure usually conducted in all fatal traffic accidents.