FILE - This Feb. 9, 2013 file surveillance photo provided by the FBI shows 73-year-old Walter Unbehaun, an ex-convict from Rock Hill., S.C., during a bank robbery in Niles, Ill. Unbehaun allegedly told investigators he intended to get caught so he could live his final years behind bars. On Thursday, April 17, 2014, Unbehaun is scheduled to be sentenced in Chicago. In 50 years, he has spent just six out from behind bars. His case highlights a wider societal dilemma about what to do with an increasingly elderly ex-cons, many of whom spent so much of their lives inside prison that they, like Unbehaun, can't cope with life on the outside. (AP Photo/FBI, File)
This drawing presented by the defense team in a court filing at federal court in Chicago shows a drawing by ex-con Walter Unbehaun, 74, sent to the federal judge in his bank robbery case before his sentencing on Thursday, April 17, 2014. Unbehaun said he robbed a suburban Chicago bank so that he could be returned to prison, which he regarded as his home. His lawyers have said he felt bored and alone outside of prison, spending much of his time drawing and watching TV. Court filings say Unbehaun made the drawing he sent to the judge in jail while awaiting sentencing. (AP Photo/Defense team court filing)
