Expert matched semen sample to Wayne, then changed his mind
Professor Jonathan Whitaker, from the Wetherby Forensic Science Facility in West Yorkshire, examined a trace sample taken from Robert's hand after his body was discovered dumped near Inch Strand on January 12 last year.
It was on the basis of this forensic analysis, together with the autopsy findings of State Pathologist Dr Marie Cassidy, that the charge against Wayne O'Donoghue was upgraded from manslaughter to murder.