Forensic Files - Season 8 Episode 35 -

A drive-by shooting leaves one man dead and another seriously wounded. Cell phone calls and shell casings point to a suspect, but authorities are unable to place him at the crime scene. When a forensic geologist compared soil from the crime scene with soil found in the wheel wells of the suspect’s car, he proved that dirt is anything but dumb. Originally aired as Season 8, Episode 35.