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27 May 2011, 14:50 | Updated: 27 May 2011, 14:52
Police were searching the grounds of a stately home today (Friday May 27th) as they stepped up the hunt for suspected killer Martin Collett.
Police were combing the grounds of Hatfield House in Hatfield, Hertfordshire, after reported sightings of Collett, 35, who is wanted in connection with the murder of his ex partner Canadian Angela Hoyt, 34.
Police found her body after breaking into her home in Glebeland, Hatfield on Tuesday afternoon.
It followed after concerned phone calls to police from her family in Canada.
Angela is believed to have been strangled at her home sometime between last Sunday and Tuesday.
Police have said they want to question her ex partner Collett, who they said could be anywhere in the country.
He is also thought to have connections in Southampton, Bristol and Stratford upon Avon.
Canadian-born Angela worked for the Red Cross as a Public Affairs and Communications Advisor.
She was born in Windsor, Ontario and moved to the UK in 1999, aged just 19, to travel and play rugby. She went to the University of Wales, where she studied Journalism. She had been working in Islamabad for the past three months.
In a tribute issued through Herts police her family said: "Angela was a very ambitious and driven girl. She had a passion for human rights and wanted to use her work to help improve the lives of those less fortunate. She had strong opinions and convictions. Angela was athletic, she was a runner and played rugby. The few times she did sit still was to read or have a glass of wine with friends.
"Her niece and nephew were a great source of pride and she was an awesome aunt to them. She always picked up very thoughtful treasures for them on her travels. She was very close to her parents and twin sister. Angela had an infectious smile, it lit up the room."
Detective Chief Inspector Mark Ross who is leading the investigation and said: "This is a tragic case involving people who are known to each other but no doubt members of the local community will be shocked by what has happened. My team are making a number of inquiries across the country to trace Martin as a matter of urgency but I would like to reassure members of the public that we do not believe he is a threat to anyone.
"Martin may be anywhere in the country and I would ask anyone who thinks they have seen him since May 22, or anyone who knows where he is to contact our incident room directly on 01707 355959 or call Hertfordshire Constabulary on 0845 3300 222. If you have had any previous contact with Martin, we would also like to hear from you. If you don't feel comfortable in contacting police directly, please do call Crimestoppers anonymously 0800 555111."