>>211628776He kills woody because he was sent to hill him.
The contractor guy that he kills is the one that hired sugar through associates, when sugar starts killing civilians and blowing up cars he hires woody to go kill sugar and get the money back.
Sugar kills woody and takes offense that the contractor guy didn't think he could finish his contract and hired other people.
https://www.youtube.com/watch?v=alK25CQHg5M