US NewsSoldier Deployed to Guantanamo Bay Dies While Swimming at Cuba BeachSaveMark Us Preferred on GooglePrintPfc. Matthew Cox of the Iowa National Guard, who deployed to Guantanamo Bay, died while swimming at a beach on Oct. 16, 2018. US ArmyZachary StieberSenior Reporter10/19/2018|Updated: 10/19/2018Pfc. Matthew Cox, a member of the Iowa National Guard, died after getting caught in a strong current at a beach in Cuba, officials said.Cox went missing while swimming at Cable Beach off the southern tip of Cuba on Oct. 16. His body was found the following day.We had a problem loading this article. Please enable javascript or use a different browser. If the issue persists, please visit our help center.