Murder in the snow

Murder in the snow

After a heavy snowfall, a crime occurs. They call a police detective and the only clue he finds are the marks of some tires. The detective follows in the footsteps and arrives at a large mansion. Inside there are four men sitting. There are none who wear shoes or have a car, but the detective instantly knows who the killer is.

How could you find out so soon?


Because the killer was in a wheelchair.