A 50-year-old man died after a crash on Niagara Falls Boulevard Thursday night.Officials responded to the 8100 block of Niagara Falls Blvd. around 9:30 p.m. after an 18-year-old driver struck the man in the roadway while traveling westbound in her Jeep. He was transported to Niagara Falls Memorial Medical Center for his injuries and died shortly after.An investigation into narcotics activity in the City of Jamestown resulted in the arrest of the Buffalo man for drug possession. Narcotics investigators from the Chautauqua County Sheriff's Office and narcotics detectives from the Jamestown Police Department executed a search warrant on Thursday at 312 E 6th St. on Thursday. Located inside the residence at the time of the search was 32-year-old Laquil Hilson. As a result of the search, investigators seized 31.4 grams of methamphetamine, 23.4 grams of crack cocaine, 11.9 grams of fentanyl.A mother and her child died in an ATV rollover accident in Wellsville on Thursday.Around 2:30 p.m investigation determined that Ashley Robichaud, 38, of Wellsville was driving a 2003 Polaris Trail Boss four-wheeler in a pasture with her two children, a six-year-old and a three-year-old. When the four-wheeler was at the pasture’s lowest point of elevation, it overturned, pinning Robichaud and her six-year-old underneath. They were pronounced dead at the scene.Buffalo police are investigating a single-car crash that occurred at the foot of Route 33 and Oak Street early Thursday morning. Police said the driver of a Chevrolet Equinox lost control, rolled over, and struck a tree. There were two adults and four children in the vehicle at the time of the crash. The two adults were transported to ECMC and the four children were transported to Golisano Children's Hospital of Buffalo. Two of the children remain in serious condition in the Pediatric Intensive Care Unit.