Det Ch Insp Martin Brunning said officers were treating the man's death as an "isolated incident".
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Police said they were treating the children's deaths as suspicious but said there was no threat to the wider community.
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Doctors were overwhelmed by the number of casualties, and were treating the injured on the floors and in the hallways.
Detectives investigating the case said they were treating the children's deaths as suspicious, but were not looking for anyone else.
Police said on Wednesday they were treating the death as suspicious, but after further investigations had now launched a murder inquiry.
Officers said they wanted to reassure the community that they were conducting a thorough investigation and were treating the incident "very seriously".
Provincial police commander Supt Kaiglo Ambane told the National that police were treating the case as murder and would arrest those responsible.
West Ham said they were treating the claims "with the utmost seriousness".
He also claimed there was a belief courts were treating the two sides differently, with leading republicans getting bail in contrast to loyalists.
Police initially said they were treating the case of as possible attempted homicide, but it was not immediately clear whether the mother would face any criminal charges.
Detectives said they were treating the attack as attempted murder.
Earlier this week, Northern Ireland's first minister, Peter Robinson, said there was a belief courts were treating the two sides differently with leading republicans getting bail in contrast to loyalists.
Earlier, U.S. Attorney General John Ashcroft told CNN that investigators were treating the anthrax incident in Florida as a criminal matter but were not prepared to label it a bioterrorism attack.
In that debate last week, you heard Ronald Reagan mentioned dozens of times, while the candidates were treating the current Republican president as if though he were some kind of political untouchable.
Asked about reports the couple had been arguing in the hours leading up to the crash, the police said they were treating the incident as a traffic accident, not a domestic issue.
Danny Alexander, Lib Dem Chief Secretary to the Treasury, denied the plans were treating the longterm unemployed in the same way as criminals doing community service, telling the BBC's Politics Show the "purpose is emphatically not to punish and it's not to humiliate".
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Police said they were not treating the deaths as suspicious.
Locke, 61, reminded China reporters that despite the downgrade, investors were still treating Treasury debt as the global safe haven asset of choice.
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But doctors reported that the injuries they were treating, in general, came from the blast, not chemical exposure.
Mark Harper, the Cabinet Office minister, said the government were "treating voters with respect" in giving them the ability to vote in elections to Scottish, Welsh and Northern Ireland institutions - and in a referendum - on same day.
Mr Barham, 48, said doctors were "keeping him asleep for now" but had earlier reduced the muscle relaxant they were treating him with and "he coughed and wriggled his fingers".
He said health cities were in the most part "ivory towers, " treating only the wealthiest Indians and foreign medical tourists.
Access to price information shifts the balance of power to the buyers: they can buy as little or as much as they need, treating the order form as if it were a spreadsheet, to see the effect of volume discounts or of adding or removing features.
The latest example of Chavez's abuse of power has been the manner in which his regime is treating the Governors and Mayors of the opposition who were elected last December 2008.
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In only two patients did the diagnosis change the way doctors were treating them.
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Johannesburg resident Masego Maponyane said the city's new lease of life meant that visitors were no longer treating it as simply a transit point on the way to other destinations.
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For the people who got into trouble were AIG Financial Products and the problem at AIGFP is that they were not treating their CDS contracts as derivatives whose value changed with underlying prices.
Moreover, the branded market is growing, he believes, because there were additional indications for Lucentis for treating diabetic macular edema, the patient population expanded due to age and more patients switched from Avastin.
Sollecito condemns his treatment by Perugia police who, he says, would not give him food or access to a lawyer during the questioning, even though it was clear to him that they were treating him as a suspect and not just a person informed of the facts of the case.
Officers, who said they were pleased with the response, are treating the deaths of the family members last October as murder.
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