SDLP Policing Board member Conall McDevitt said the murder bid was a "cynical and deplorable act".
Those seeking to target police officers are undermining not only the stated will of the people of Ireland who have long since rejected violence, but also the desire for a new beginning for policing in the North, which is shared by the majority of citizens.
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The man accused of stabbing to death two British backpackers at an Australian hostel has been charged with a second count of murder.
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