Honolulu police are hunting for a light-colored van linked to a hit-and-run that killed a 25-year-old bicyclist, which is bad news for the suspect and good news for the victim's family if it leads to an arrest.

• A van struck and killed 25-year-old Tiana Napua while she was on a bicycle on a Waipahu street in October.
• The impact threw her into the road, and the driver fled the scene.
• Police do not believe speed or impairment caused the crash, raising questions about why it happened.
• Investigators are asking the public for help identifying the van, which has a logo near its rear corner and a partial license plate caught on camera.

Outlook: Police are relying on the public to identify the van and its driver, with an arrest likely once it's located.