When you're desperate to have Bitcoin, you will do even the most evil things that you can think.

One word. Jealousy. The suspect might be jealous that's why he committed a crime like that. I do really hope that not everyone will do the same as what the OP has shared. I do hope that we can earn in the most honest way. I do hope that we can earn Bitcoins without harming any other people out there (at least physically). Subject title might be a bit misleading, but we got the point.

Always stay lowkey, and as much as possible, keep your Bitcoin holdings in secret because you don't know who are the people that you could trust. Speaking of trust, people nowadays can be trustworthy, but they can change in an instant and it's because of money.