Robert Boggia Credit: Courtesy of Maine State Police

A Whiting man awaiting trial at the Washington County Jail on charges of gross sexual assault, robbery and burglary is facing additional charges, according to the Maine Department of Public Safety.

Robert Boggia, 33, was charged Tuesday with conspiracy to commit murder and arson, Stephen McCausland, spokesman for the department, said Wednesday.

“Maine State Police troopers, working with the Washington sheriff’s office and the Maine Drug Enforcement Agency, received new information in the past week that Boggia wanted to kill a witness involved in his case,” McCausland said. “In addition, fire investigators say they have developed a case against him following a fire at his former home in Blue Hill in 2013.”

The house was destroyed in the blaze.

Boggia has been unable to post $50,000 cash bail since his arrest Feb. 16 following a manhunt for him in Washington and Hancock counties, according to media reports.

He is expected to make his first court appearance Thursday or Friday at the Washington County Judicial Center in Machias.

If Boggia is convicted of either conspiracy to commit murder or arson, both Class A crimes, he faces up to 30 years in prison and a fine of up to $50,000.