The Dodge County Sheriff’s Office says alcohol may have been a factor in a two vehicle crash Friday afternoon that claimed the lives of both drivers. The victims have been identified as 21 year old Kaley Gray and 28 year old Jose Perez-Martinez both from Waterloo. Investigators say Gray was the driver of an eastbound car that collided with a westbound pickup driven by Perez-Martinez on state Highway 19 about a mile east of Waterloo. Both drivers were pronounced dead at the scene. Investigators say operating left of center while failing to negotiate a curve led to the crash.