The phrase "accidental killing" is correct and usable in written English.
It can be used to describe an unintentional act that results in someone's death, often in legal or news contexts.
Example: "The investigation revealed that the shooting was an accidental killing, with no intent to harm."
Alternatives: "unintentional homicide" or "inadvertent death".
At first, police called it an "accidental" killing after an officer "mishandled" a gun.
In neighboring Afghanistan the Taliban has stepped up its assaults, capitalizing on NATO's costly, if accidental, killing of civilians and retaking ever more territory.
A teenager who recently graduated from high school was killed in an accidental shooting in Maryville, Tenn., Tuesday night.
Relations between the two countries have been increasingly fraught after the killing of Osama bin Laden in Abbottabad last May, the incident involving Raymond Davis, the CIA agent who shot and killed two men in Lahore, and the accidental killing by US forces in Afghanistan of 24 Pakistani troops at a frontier post last November.
Last year in an investigative report titled "The Killing Agency," Sacramento Bee reporter Tom Knudson detailed that Wildlife Services had employed often inhumane tactics to kill millions of animals just since 2000, including the accidental killing of more than 50,000 animals.
His intention was to obtain Baker's disk containing Metal Gear's specifications and deliver it to the President, and kill whoever knew of his true motives, one reason for his "accidental" killing of the DARPA Chief.
When it's 'accidental', someone is shot or killed by a car, the money doubles.
At 86, Thatcher has outlived Monroe by half a century: Marilyn was just 36 when a drug overdose – probably accidental – killed her in 1962.
It also says "accidental kills of caribou could occur as a result of project activity" and that "small numbers of ringed seal mortalities could occur as a result of icebreaking activity".
Laura Dattaro notes (link is external), "Accidental kills are a frequent byproduct of the agency's methods.
They told stories about murders and suicides and accidental deaths; about killing, solving killings and even seeing fellow officers slain.
