в злонамеренных целях(Back in the 1990s, a conspiracy theory emerged suggesting that the vapor trails of high-altitude aircraft that can often be seen criss-crossing the sky are actually trails of chemicals being deliberately sprayed by the government for shadowy, nefarious purposes. (unexplained-mysteries.com)
• Автор не несёт никакой ответственности за использование конкретных приведённых материалов в злонамеренных целях. (из рус. источников)ART Vancouver)
злоумышленник(The group concluded that a nefarious individual must have somehow stolen the bird from his home and, as such, indicated that they have alerted police to the suspected heist. -- некий злоумышленник (coasttocoastam.com)ART Vancouver)