He must have known his victim. At some point we will hear how the whole story plays out. What a moron, for the first and most obvious reason to take another person's life. Second, to do it by drawing so much attention to yourself wearing a trench coat and Amish top hat. (Like we have lot's of them around here trying to blend in.)
Love triangle gone wrong? Money owed over drugs?
Glad they caught his stupid ***. Most likely the bond amount is relative to his priors, and potential to stay put. (Family putting up a home or something.)