UK - Gary Grinhaff, 44, an electrical engineer, battered his wife Tracey, 42, a former hairdresser, to death after she changed her profile on the social networking website to: "Currently splitting up with my husband."
Mr Grinhaff conducted his own private investigations after becoming convinced that his wife had rekindled a relationship with one of his close friends, an inquest heard.
He bugged her 4x4 vehicle to eavesdrop conversations, fitted it with a tracking device and secretly bought a Ford Escort which she would not recognise while he follow her in disguise. (more)
