Facts:   - name: patrick w. boyd      - image name: replace this image male.svg    - charge: bribery   Based on these bullet points, write a short biography describing the life of patrick w. boyd .
patrick w. boyd is an air force master sergeant who pled guilty to accepting bribes when he served in afghanistan .prosecutors estimated he accepted $ 130,000 in bribes from afghan contractors .major christopher p. west also faced bribery charges .the two men were arrested on august 26 and august 27 , 2008 .four afghans who were alleged to have been among those who issued the bribes were tricked into entering the us on august 25 , 2008 .boyd , west , and another gi charles w. patton , pled guilty on june 2009 .the bribery took place when boyd and west were deployed to afghanistan in 2004 and 2005 .patton , who was n't deployed to afghanistan , pled guilty to receiving and hiding cash from west .in october 2009 sergeant ana c. chavez , who served at the base in 2005 -- 2006 , pled guilty to taking us$ 90,000 in bribe payments .the men accused of bribery were : assad john ramin and tahir ramin , of az corporation and top 's construction , brothers who were joint citizens of afghanistan and the usa ; noor alam , owner of northern reconstruction organization ; and abdul qudoos bakhshi of naweed bakhshi company .three other afghan men , ziaulhaq , bashir ahmad , and kiomars mohammad rafi were being held as material witnesses .the afghans arrived in chicago in response to an invitation to a conference to celebrate the successes of operation enduring freedom .