Man killed wife on cruise ship for 'laughing' at him

A man suspected of killing his wife while on a cruise ship in the US state of Alaska did so because "she would not stop laughing" at him, a witness says. Kenneth Manzanares has been charged with the murder of his 39-year-old wife, whose body was found with severe head wounds in their cabin. He was detained after security agents found blood on his hands and clothes, court documents said.
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