Prior Lake couple charged in mailbox bombing caseBy TIM HARLOW, Star Tribune
Last update: October 15, 2009 - 11:52 AM
A Prior Lake couple has been charged with possession of explosive and incendiary devices and aiding an offender in connection with a series of mailbox explosions over the summer in four south metro communities.
A criminal complaint filed in Scott County District Court alleges that Robert and Roberta Masters bought gunpowder and other supplies for seven teenagers who are accused of building pipe bombs and using them to blow up to six mailboxes in Burnsville, Lakeville, New Market Township and Credit River Township in May and June.
According to the complaint:
Robert Masters and his son bought one-pound boxes of a black power used for muzzle loading firearms on two separate occasions at a Lakeville store. Robert Masters, 48, told investigators that he bought the items to make the pipe bombs for the teens and said "that it would be a good educational tool for the kids to build pipe bombs."
Roberta Masters, 52, told investigators that she advised the teens to use the Internet to learn how to make the bombs, which she allowed to be detonated in her back yard. Other than telling them to be careful, she encouraged them to build the bombs because she thought it "was constructive," the complaint said.
Authorities said they searched the Masters' residence on July 1 and found 22 items, including white PVC pipe similar to that found at the crime scenes. They also found funnels with what appeared to be black gunpowder residue, and burned fireworks or combustibles in an outdoor fire pit.
The Masters also are accused of trying to thwart the investigation. According to the complaint, the Masters attempted to contact the teens' parents and "urge them not to talk to police, to get their stories straight and make amends with all the victims."
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