In July 2006, 19-year-old Joseph Miranda was working for a local landscape company outside Baltimore Maryland.
He went to work early, kissed his mom goodbye, said he loved her and drove off in his jeep. She never saw him alive again.
Witnesses say Joseph was asking a co-worker to use a 7,000 pound Bobcat Tractor to move trees when the driver of the bobcat ran him over.
His mother, Adrienne Miranda tells 'True Crime DEADLINE' in a NEW interview that the evidence points to foul play.
She believes a co-worker pushed her son in front of the moving machine. She hired a forensic expert and obtained case documents.
There has been no arrests made in the case. Miranda is on a mission to have her son's case re-opened. It was originally ruled an accident, now, homicide.