A state police fire marshal hasn’t been able to determine what caused a fire at a Barbour Street home on Tuesday. The fire was reported at about 4 p.m. at 112 Barbour Street. The city fire and police departments were also involved in the investigation. Beefeater’s is holding a benefit for the victims. 100 percent of the restaurant’s sales from 4 to 9 p.m. Thursday will go to them.