<sod >Police opened a murder inquiry after a post-mortem found the 68-year-old had died of ÃÂ¢ÃÂÃÂcompression to the neckÃÂ¢ÃÂÃÂ.< eod>< sod > It was initially treated as unexplained but detectives opened a murder inquiry after a post-mortem found the 68-year-old had died of ÃÂ¢ÃÂÃÂcompression to the neckÃÂ¢ÃÂÃÂ.< eod>