Easy. As my assassin I would need a U-haul, and a bunch of deer.
See, I'm running late every morning, I leave home at 0533 which results in....bending some speed limits. And it's always dark, and i'm always sleepy. So it's a struggle to really pay attention.
The plan is to park the U-haul that I've filled with deer at a conveniently placed mine road in the middle of a straight stretch. At precisely 0536 I open the rear hatch and throw in a pack of firecrackers. The deer, naturally, run directly in to sleepy speeding me's car. I either A) lose control of the vehicle trying to avoid the 20-25 deer and die in a fiery crash; or B) catch about 4 deer with my face at 70mph.
I climb into the u-haul, take it to a nearby car wash to hose out, drive around for a while to rack up some miles so it's not suspicious when I return it, and the job is done.