A Des Moines man was convicted today in U.S. District Court in Seattle of 19 felony counts over threats he made against Boeing, Shell Oil and Chevron Oil, according to the U.S. Attorney's Office. A jury deliberated about five hours following a four-day trial before reaching the verdict.

Gino Turrella was convicted of two counts of making interstate communications with threat to injure person, seven counts of making threat by instrument of interstate commerce, one count of possessing a firearm during threats of violence and nine counts of identity theft. Turrella faces a mandatory minimum sentence of five years in prison and up to 10 years in prison when he is sentenced on Feb. 19.

Turrella was indicted in August 2008 by a federal grand jury in Seattle. The indictment charged Turrella with making e-mail threats eight times between May 2 and May 30. Turrella made the threats posing as other people by using e-mail accounts he'd created in their names, the U.S. Attorney's Office said.

In e-mails to Boeing, Turrella said he was going to bring a gun to a Boeing facility and "shoot ever [sic] employee I see," and also that he'd "strap himself with explosives and detonate" if apprehended to cause "maximum death and destruction in the workplace!"

In another e-mail, Turrella threatened an Anacortes oil refinery, saying a bomb had been placed at the refinery that he was going to set off via remote control.

When Turrella's home was searched, authorities found more than 100 firearms.