Derek Knowling, 31, and Brian Rees, 59, critically injured when pickup smashes into surveyor vehicle on SR 37 in Noblesville, Indiana

Based on witness statements and evidence at the scene, it appears that a 2005 Chevy pickup truck was traveling southbound when it crashed into another vehicle. The other vehicle was identified as a 2012 Ford Escape registered to Certified Engineering, Inc. of Indianapolis.