But our obsession with these stories got us wondering

Are there certain traits or factors that make somebody more likely to kill someone?

And are you capable of murder?

To start have you ever thought about it before?

Well this isn't actually that meaningful because it's so common.

A survey of almost 1,000 students found that

76% of women and 91% of men reported having one

vivid and memorable homicidal thought.

In fact other reports show men may have roughly ten murder fantasies

and women three in the past year.

Is your heat beating fast right now?

Then you're probably safe.

A study of 710,000 menhad their resting heart

rate measured when they were 18 years old

as part of a military service test.

In the decades that followed the men with the lowest resting heart rates

were 39% more likely than the high resting heart rate group to commit a violent crime.

Additionally a separate study found that a low heart rate

was linked to stalking behavior.