The word ‘killer’ is correct and is often used in written English.
You can use it to describe something that is particularly effective at performing or achieving its purpose. For example: “This new painting program is a real killer—it makes creating digital art easier than ever!”.
Outlining his story in a matter-of-fact manner, the controlling killer told the operator: "I grabbed the knife and stabbed him in the back of the neck, I believe somewhere near the brain stem.
Whether the killer is caught before he strikes again, the events of last week are certain to be remembered for ever.
Clinical psychologist Clive Sims, based at St Clement's Hospital, Ipswich, warned that the next victim would be chosen carefully and that the killer would be driven by the need to maintain the thrill of killing.
Skydiving commandos, a homemade killer drone and even a pair of animatronic dinosaurs were all deployed by Pakistan's army on Monday in an attempt to deliver a much-needed shot of self-confidence to the terrorism-ravaged country.
I'm always looking for that killer tune.
Officers are checking similar cases in East Anglia to establish whether a serial killer could be at large, but stressed no link had been found to any other crime.
You don't hear the news, you don't hear what's going on," he told the Smithsonian magazine, which reported the team facing "poisonous snakes, killer bees and army ants".
At first it appeared the champion was merely starting sleepily: circling slowly, hitting his opponent with his killer eyes.
The rage only intensified when it became known that the killer was Mohamed Merah, a young French citizen of Algerian origin.
The killer though is the quote by Professor Campbell, one of the authors, who - whether by accident or bad editing - seems to be saying something completely at odds with the conclusion of his own paper.
I'd guessed that the killer had been sending the bluebells, and that he'd be coming for Hardy.
