MYSTIC, Conn. --
A volunteer with Mystic Fire Department has been arrested, accused of setting a fire on Library Street last month.
Police said William Celtruda, 21, of Mystic, set fire to a multistory house at 23 Library St. on July 25.
Several departments worked to extinguish the fire. Investigators determined that the fire was set.
Residents are shocked by the firefighters arrest.
I think its too bad that somebody that's supposed to be looking out for the interest of his community would go out and start a fire, Mystic resident David Klein said.
Police said they do not know why Celtruda allegedly set the fire.
Others said the house was an eyesore for some.
I've heard that a lot of people didn't want it there or wanted it to be fixed up so it would be nice instead of just sitting there abandoned, Mystic resident Rob James said.
Celtruda was charged with first-degree arson and first-degree criminal mischief.
He is being held by Groton police on a $100,000 bond and is scheduled to appear in court Thursday.
Celtruda is a probationary volunteer member with the Mystic Fire Department, police said.
Officials are investigating two other suspicious fires and arrests are expected in those cases, police said.
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