where was martin cooper from?
Chicago
contradiction
 In late 1999 , Martin originally agreed to a plea bargain in which he agreed to disclose information about the payments . The agreement with the United States Attorney 's office , whose Assistant U.S. Attorney Richard Convertino led the prosecution case against Martin , was nearly finalized in January 2000 . The paperwork for the plea agreement was to be finalized in March 2000 for the former Ford Motor Company employee to plead guilty to one count of federal gambling and one count of income tax evasion . He and his son , Carlton , backed out in May 2000 , preferring to take their chances at trial due to the likelihood of light punishment for first @-@ time offenders . Under the plea agreement in which they would have forfeited $ 100 @,@ 000 and faced 6 – 15 months in prison , they would have been able to keep their homes . If found guilty at trial , they could have received up to 5 years imprisonment and a fine of $ 250 @,@ 000 per count , but they would not have to agree to cooperate with the University investigation . 

entailment
 Coffelt was a conman , ex @-@ convict , and purported government informant who claimed to have been the chauffeur and confidante of Abraham Lincoln 's last undisputed descendant , great @-@ grandson Robert Todd Lincoln Beckwith . In 1972 he began claiming he was D.B. Cooper , and attempted through an intermediary , a former cellmate named James Brown , to sell his story to a Hollywood production company . He said he landed near Mount Hood , about 50 miles ( 80 km ) southeast of Ariel , injuring himself and losing the ransom money in the process . Photos of Coffelt bear a resemblance to the composite drawings , although he was in his mid @-@ fifties in 1971 . He was reportedly in Portland on the day of the hijacking , and sustained leg injuries around that time which were consistent with a skydiving mishap . 

contradiction
 L.D. Cooper , a leather worker and Korean War veteran , was proposed as a suspect in July 2011 by his niece , Marla Cooper . As an 8 @-@ year @-@ old , she recalled Cooper and another uncle planning something " very mischievous " , involving the use of " expensive walkie @-@ talkies " , at her grandmother 's house in Sisters , Oregon , 150 miles ( 240 km ) south of Portland . The next day flight 305 was hijacked ; and though the uncles ostensibly were turkey hunting , L.D. Cooper came home wearing a bloody shirt — the result , he said , of an auto accident . Later , she said , her parents came to believe that L.D. Cooper was the hijacker . She also recalled that her uncle , who died in 1999 , was obsessed with the Canadian comic book hero Dan Cooper ( see Theories and conjectures ) , and " had one of his comic books thumbtacked to his wall " — although he was not a skydiver or paratrooper . 

contradiction
 While traveling in Mexico , Scripps met María Pilar Arellanos , of Cancún , and married her in 1980 . They travelled together for two years until 1982 , when he was sentenced to a three @-@ year jail term for theft , burglary and resisting arrest . His imprisonment upset María , and their relationship was further soured when he ran away from jail during home leave in June 1985 — just months short of completing his term — and burgled again . He was sentenced to another three years ' imprisonment , during which she filed for divorce and married Police Constable Ken Cold , an officer in the Royal Protection Squad . This angered Scripps , who acted in revenge , stealing some of Cold 's clothing while released on home leave . He was appeased only when she divorced her new husband and returned to her hometown . After he was released , Scripps legally changed his name to John Martin . 

neutral
 D. B. Cooper is a media epithet popularly used to refer to an unidentified man who hijacked a Boeing 727 aircraft in the airspace between Portland , Oregon , and Seattle , Washington , on November 24 , 1971 , extorted $ 200 @,@ 000 in ransom ( equivalent to $ 1 @,@ 170 @,@ 000 in 2015 ) , and parachuted to an uncertain fate . Despite an extensive manhunt and protracted FBI investigation , the perpetrator has never been located or identified . 
