MIDLAND COUNTY, Texas (KMID/KPEJ) - Midland Crime Stoppers is now offering a $6,000 cash reward for the first tip that leads to an arrest or case closed following the murder of a truck driver in May. Crime Stoppers said the Midland County Sheriff's Office is continuing to investigate the homicide of 26-year-old Austin Winn between 9 a.m. and 11a.m. on May 12 in the 10400 block of West Interstate 20. Upon arrival, deputies found the deceased male…