David Surman Jr., who prosecutors say was behind a series of explosions in upper Bucks County last spring, has spent the last few months buying things a judge forbade him to own, officials said.

The Quakertown native, 31, used fake names and phony Social Security numbers to purchase chemical compounds, computer parts, and gun components over three months, according to a motion to revoke his bail. Prosecutors contend that those purchases are grounds to jail him on the bombing charges as well as an unrelated child-pornography case.

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