He isn’t the murderer. His appearance is brief in terms of guest stars.
They move on to a group of environmentalists who threatened the victim’s life for considering building a ferry that would kill endangered animals. In the end, the victim had a change of heart and decided not to go through with it. His business partner on the other hand wanted the money and knew he would get more if he killed him and went ahead without him. When the victim’s wife realizes what happened, she holds the business partner at gunpoint when the 5-0 team storms in. The partner steals the gun from her hands and holds her at gunpoint for about 2 seconds. Steve literally rolls his eyes and shoots the guy in the shoulder. That was so anticlimactic.
