A deer's retribution?

Whenever I read an article about deers or just look at them, I get the image of a driver running over a deer. I wonder why it's so common for deers to be hit by cars? I've never experienced this in real life because I never traveled to the east coast, so I wouldn't know.

Car vs Deer
This interesting article informs that a deer and a police trooper died from an accident but may have been avoided. In the deer's perspective, the human ruthlessly murdered the deer while the deer was unaware. In the possible human's perspective, the deer jumped out of nowhere and didn't care to die? Either way, both died and by thinking about this as a deer's retribution, I mockingly laughed.