Rossiter Man Charged in 2013 ‘Molotov Cocktail’ Arsons

Blue flashing sirens of police car during the roadblock in the cROSSITER, Pa. (EYT) – A Rossiter man is facing charges in connection with three arsons that occurred in Indiana County in 2013.

Between May 26, 2013, and July 23, 2013, three separate fire incidents were reported to the Pennsylvania State Police in Punxsutawney. All three fires were ruled arson by the Pennsylvania State Police Fire Marshal Unit.

Johnsonburg Road Fire

It was discovered that “incendiary devices” were used in an attempt to burn the property at 677 Johnsonburg Road in Canoe Township, Indiana County.

Prior to the incident, the property owner had an encounter with a motorist who drove past the property at “a high rate of speed,” just prior to the Memorial Day weekend of 2013. She confronted the motorist about the speeding as he drove past.

The motorist, identified as William “Billy” Mumau, of Rossiter, returned later that day to confront the property owner.

That weekend, an attempt was made to burn a building on the property. Two additional attempts were made in June 2013. These attempts involved a “Molotov Cocktail” being thrown against a building on the property.

A joint investigation was launched by the Pennsylvania State Police Fire Marshal Unit and the Bureau of Alcohol, Tobacco, Firearms, and Explosives.

Through the course of the investigation, evidence was gathered linking 48-year-old Glenn W. Mumau, father of William “Billy” Mumau, to the arsons.

Indiana County District Attorney Patrick Dougherty approved the filing charges against Glenn W. Mumau:

  • Arson-Danger Of Death Or Bodily Injury, Felony 1 (10 counts)
  • Reckless Burning or Exploding – places uninhabited or unoccupied structure in danger, Felony 3 (3 counts)
  • Arson-Intent Destroy Unoccupied Building, Felony 3 (3 counts)
  • Possess Explosive/incendiary Material, Felony 3 (2 counts)

Mumua is currently in the Jefferson County Jail on unrelated drug charges.

Residents of Rossiter, Glen Campbell, and the surrounding areas are asked to contact the Pennsylvania State Police at 814-938-0510 or the Bureau of Alcohol, Tobacco, Firearms, and Explosives at 888-ATF-FIRE, if they believe they have any information about Mumau’s involvement in this investigation.


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