Career
His body was found in a shallow grave, having been strangled. Since 1980, seven young men had disappeared in the so-called 'Triangle of Death' around Mourmelon military camp. A year after O'Keeffe's murder, chief adjutant Pierre Chanal was stopped by police, who found a Hungarian hitchhiker bound and gagged in the back of his van.
In 1990 Chanal was convicted of kidnapping and rape. He was released from prison in 1995. Chanal committed suicide in hospital after his previous attempt in prison in 2003 while on trial.
Mrs. O'Keeffe later wrote a book on her experiences.