Lapuaho was a passenger in a car which struck a power pole.
Police said the car was heading to town when it swerved and crashed.
Kaniva News reports the driver was injured and is now in Police custody after receiving medical treatment at Vaiola Hospital.
Police also said early indications are that speed, alcohol and illicit drugs are factors in the crash.
Police were yet to release Lapuaho’s name, but friends have posted tributes to the young man on social media.
“I’m lost for words right now bro,” one said.