President James Polk died four months after leaving office, at the age of 53. His wife lived for another 42 years.
Q: Did former President Barack Obama pardon Wendell Callahan, who was later accused of killing three people after his early release?
A: No. Congress unanimously passed a bill changing drug sentencing laws and Obama signed it. Callahan petitioned for early release under the new law and it was approved by a federal judge.