A career criminal who threatened to kill and eat President Obama won't be going out to dine any time soon.

Gregory Dale Brockman, 33, was serving a three-year sentence for burglary in January 2010 when he wrote letters to the Secret Service detailing his plans. According to court papers, in one missive, postmarked Jan. 19, 2010, from a Chester prison, he also described how he would sexually assault Michelle Obama and then "skin her alive."

He added that after killing the president, he planned to "cut his meat from his bones and put them in the oven," then "sit down at the table and start eating."

In an interview with Secret Service agents a few weeks later, Brockman admitted writing the letter, saying he had been trying to calm himself down. According to court papers, he told the agents he was upset about the war in Afghanistan, marijuana prohibition, and underfunding of public schools. Brockman also mentioned how he was fascinated by Jeffrey Dahmer, who killed 17 people and consumed several of them.

When asked, the former Carbon County resident told the federal agents that he still intended to hurt the president and would act on those thoughts if he were released from prison.

In his letters, Brockman also threatened to sexually assault Speaker of the House Nancy Pelosi and Secretary of State Hillary Rodham Clinton and kill Vice President Biden, U.S. Attorney Zane David Memeger said.

On Thursday, Brockman was sentenced to five years in prison. He is to serve that after finishing his term in Chester and another five-year term for threatening President George W. Bush in 2008. The sentences, Memeger said, will run consecutively.

Contact staff writer Sam Wood at 215-854-2796 or samwood@phillynews.com.