Maui police said officers arrested 49-year-old Eric Wayne Fernandez in Kahului Wednesday for theft, forgery and impersonating a law enforcement officer.
Fernandez is accused of impersonating an FBI agent to a Maui family.
The victims said they knew and trusted him for the last three years. Fernandez asked the family to go into their home and investigate a "cyber" crime that involved their daughter and a Facebook account.
The victims gave Fernandez the key to their home and, upon returning home, they noticed items. The missing items included an Apple iPod Touch, four Apple gift cards, a gold heart-shaped ring and $300 in cash.
The total value of the items' take was $1,630.
Bank of Hawaii records also show that Fernandez tried to cash a personal check from the victims in the total amount of $1,000.
When police arrested Fernandez, they found a .38 caliber revolver, a taser, three air soft handguns, two air soft rifles with scopes, two FBI badges, one Maui Police badge, a hand grenade, ammunition, gunpowder, and FBI and police raid clothing in his home. The air soft guns resemble real guns, according to police.
On Friday, the U.S. Army's E.O.D Unit out of Schofield Barracks arrived on Maui to mitigate the hand grenade. The grenade was found to be live without a firing pin, and was disposed of properly by the E.O.D. Unit.
Fernandez is also wanted in Sacramento, Calif. for a no-bail warrant. California authorities have been contacted and will extradite Fernandez back to the state.
The FBI was notified and responded to the scene. The FBI will pursue federal charges against Fernandez.