mugger
mugger
/ˈmʌɡə(r)/
a person who threatens or attacks somebody in order to steal their money, jewellery, etc., especially in a public place
e.g.
I'll be fine. The way I feel, no mugger or murderer would mess with me. 私は平気 強盗だろうが人殺しだろうが今は何も怖くないわ (/yupeco/『ホーム・アローン2』)