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Pipe-bomb suspect arrested in Solebury

John Grzyminski, 50, allegedly left three bombs in his mother's Warrington home.

This story is by Inquirer staff writer Peter Mucha:

A man suspected of making three pipe bombs was arrested late this morning in Solebury Township.

John Grzyminski, 50, was taken into custody after a Solesbury police officer spotted his black pickup truck.

Grzyminski was charged with multiple counts each of risking catastrophe and unlawful possession or manufacture of weapons of mass destruction, and other charges.

Wednesday afternoon, his mother called authorities after finding a pipe bomb in the kitchen of her home in the 1800 block of Saddle Drive in Warrington.

The neighborhood was evacuated, as local police got assistance from the Philadelphia Police bomb squad and agents of the federal Bureau of Alcohol, Tobacco, Firearms and Explosives, said AFT spokesman Special Agent Steven Bartholomew.

Two more "assembled devices" were found, and all three were remotely defused by the bomb squad, Bartholomew said.

Investigators were treating the case as an "isolated incident ... not terrorism-related," he said.

The mother and her son apparently had some kind of ongoing disagreement, but the ATF agent could not confirm a report that she had been trying to legally evict her son.

Firearms and other evidence were also removed from the house, Bartholomew said.

The remnants of the pipe bombs were shipped to an ATF laboratory in Washington for examination.

Additional evidence may have been recovered from the truck, which was carefully inspected at the arrest scene with an "explosive-detection canine," Bartholomew said.

Investigators hope to determine where the components were obtained, how the suspect acquired bomb-making knowledge, and why the bombs were created. Additional federal charges could be added.