A search warrant obtained by News 9 Investigates is shedding light on what police are looking into as they investigate what caused a fatal head-on crash on Interstate 95 last fall. WMUR filed a right-to-know request for the search warrant that explains what steps state police are taking to figure out what led to a crash in Greenland in October, the first of three crashes News 9 Investigates is looking into.>> Download the free WMUR app to get updates on the go: Apple | Google Play <<The crash happened between Exits 2 and 3 on I-95 just after 1 p.m. on Oct. 16.According to court documents, Stephen Le, of Methuen, Massachusetts, was driving north in a Toyota Camry when he crossed into the southbound lanes. The car hit a U-Haul truck head-on. Both Le and the U-Haul driver, Leslie Lynn, 58, of Roanoke, Virginia, were pronounced dead at the scene. A passenger in the U-Haul truck was seriously injured. A judge signed a warrant to search the electronic data recorder of the Toyota Camry involved on the grounds that it could be evidence in a negligent homicide investigation.>> Subscribe to WMUR's YouTube channel << Investigators cite witnesses who say the Camry was traveling between 80 mph and 100 mph just before the crash. One witness saw the moment Le's car crossed the median, saying, "it appeared as if someone yanked the steering wheel."The car is located at the New England Truck Center in Exeter. News 9 Investigates is working to determine if police have already obtained the recorder from the car. In response to the serious crashes along the northern section of I-95, New Hampshire Department of Transportation crews are starting a $3.5 million project to put up median barriers between mile markers 8 and 13. The project should be completed next spring, officials said.News 9 spoke with some drivers, who said they would support the installation of additional median barriers on New Hampshire's highways. "I think more road safety would be beneficial, given the close calls and accidents I've seen. Barriers could be helpful," said one driver.