What kind of asshole smashes the head of a Hawaiian Monk Seal? Why? It's senseless hate

It's 5 years and 50,000 dollars. I hope we find you. There is a 5 thousand dollar $10,000 reward for who ever did it. The number to call is 1-855-356-7847 or 1-855-DLNR-TIP. All calls are kept confidential.