A Seguin man was charged with manslaughter in connection with a deadly March motorcycle crash in Guadalupe County. According to the Texas Department of Public Safety (DPS), troopers were dispatched to the crash just before 5 a.m. on March 31 in the 3110 block of Stagecoach Road, which is located near Nickerson Farms Road. In its investigation, troopers said a Harley-Davidson motorcycle was traveling eastbound on Stagecoach Road when the motorcyc…