When You Absolutely, Positively...

...want to make sure of your murder victim:

A teenager murdered on a trip to the local shops was stabbed and then run over by a car, police said tonight.

Ouch!

Officers were called to the incident shortly after 11pm on Thursday, and found a man suffering from stab wounds, a spokesman said.

The tyre tread marks on his body were, presumably, an extra clue...