|Family:||Unnamed mother †|
|Portrayed by:||James Michael Connor|
Deacon MacKenna was the Deacon of St Martin's Church and also an infamous serial killer known as the Trashman who operated in Hawaii from the 1980s to 2009.
When Dr. Max Bergman was abandoned by his birth mother, McKenna was one of the ones who found him.
He was well known for targeting his female victims with his M.O being to bind his victims, suffocate them and then leave their bodies in garbage bags hence the nickname, "Trashman" with his second victim being Machiyo Takeshita, Max Bergman's biological mother.
MacKenna's own killing urges and reasons for murdering women who had children was due to the fact that his own mother had abandoned him and as such, MacKenna himself was raised in several care houses with MacKenna commenting that they were horrible and abusive and doing him a big favor.
MacKenna later captured Max, telling him that his mother had come back for him years later. He attempted to kill Max, only for Max to escape and kill MacKenna by stabbing him with a piece of glass just as Chin Ho Kelly and Kono Kalakaua arrived.
- Died after being stabbed by a piece of glass wielded by Dr. Max Bergman.