Hawaii Five-0 S09 E19 Pupuhi ka heʻe o kai uli (The Octopus of the Deep Spews Its Ink)

Five-0 investigate the murder of a window washer and find that the victim is actually a renowned street artist who may have a politically motivated bounty on his head. Also, Grover and Adam look into the murder of a gambler, and Junior helps his father when they are reminded of his sister’s death.