BREAKING: US Marine Jon Hammar to Be Released From Mexican Prison by Jim Hoft on Friday, December 21, 2012 Jon Hammar, a former Marine held in Mexico on gun charges, has been in a Mexican prison for four months on what is being called a trumped-up federal weapon charge. He was arrested Aug. 13 in Matamoros after he declared to Mexican customs agents a shotgun he planned to use for hunting in Costa Rica. Hes been held in jail since August and chained to a bed. Jon Hammar survived wars in Iraq and Afghanistan. He is now up in a prison in Mexico. (CBS) Yesterday, Bill OReilly and two US Republican Representatives threatened a boycott of Mexico if Jon Hammar was not released by Christmas. This morning- Jons mother said her son would be released today. FOX News reported: DEVELOPING: Jon Hammar, the U.S. Marine imprisoned in Mexico on a gun charge, will be released today, his mother told Fox News Radio. Olivia Hammar said the judge hearing Hammars case issued a ruling in his favor and that her son is to be released at a time on Friday yet to be announced. No more details were available. Hammar, 27, who served in Iraq and Afghanistan, has been stuck in a notorious, drug cartel-controlled prison just 15 miles south of the U.S. border since Aug. 13, after he crossed into Mexico and declared an antique shotgun to Mexican customs officials. News of his pending release came just a day after a letter surfaced from Mexicos ambassador to the U.S. that insisted Hammars case would go to trial. This circumstance requires that he remain under detention during the duration of his trial, Arturo Sarukhan said in the letter. Hammar, who was charged with a federal level weapon felony and faces up to 15 years in a Mexican prison for what his travel companion said was a breakdown in communication at the U.S.-Mexico border. He has been held in the notorious CEDES prison in Matamoros, Mexico, ever since. The prison is just 15 miles south of the border. Thanks mainly to the efforts of the Fox News Group, Jon Hammar will be spending Christmas at home with his family.