Jim Koethe worked as a reporter for the Dallas Times Herald. He was involved in the investigation of the killing of President John F. Kennedy. On 24th November, 1963, Koethe and Bill Hunter of the Long Beach Press Telegram interviewed George Senator. Also there was the attorney Tom Howard. Earlier that day Senator and Howard had both visited Jack Ruby in jail. That evening Senator arranged for Koethe, Hunter and Howard to search Ruby's apartment.
It is not known what the journalists found but on 23rd April 1964, Bill Hunter was shot dead by Creighton Wiggins, a policeman in the pressroom of a Long Beach police station. Wiggins initially claimed that his gun fired when he dropped it and tried to pick it up. In court this was discovered that this was impossible and it was decided that Hunter had been murdered. Wiggins finally admitted he was playing a game of quick draw with his fellow officer. The other officer, Errol F. Greenleaf, testified he had his back turned when the shooting took place. In January 1965, both were convicted and sentenced to three years probation.
Jim Koethe decided to write a book about the assassination of John F. Kennedy. However, he died on 21st September, 1964. It seems that a man broke into his Dallas apartment and killed him by a karate chop to the throat. Tom Howard died of a heart-attack, aged 48, in March, 1965.