Authorities say that an illegal immigrant has been charged in connection with the death of a Washington State Patrol trooper who was killed after he smashed into his cruiser on a highway close to Seattle over the weekend. According to a news release, authorities say that Trooper Christopher M. Gadd, 27, died on Saturday at around 3:00 a.m. when a driver struck his parked patrol car on the side of Interstate 5 in Marysville, which is approximately thirty miles north of Seattle. He is survived by his wife, Cammryn, daughter Kaelyn; father and fellow Trooper David Gadd; mother, Gillian; and siste…