Two Nevada teens allegedly stabbed and battered their mother to death because “they couldn’t take her complaining,” police said. Dakota Saldivar and Michael Wilson, both 17, have been charged with murder in the death of their mom, 46-year-old Dawn Liebig. Wilson, whom Liebig adopted, told officers he stabbed her once in the neck and that Saldivar stabbed her multiple times, according to an arrest report. Saldivar also allegedly hit Liebig in the head with a hammer at least 20 times. Liebig desperately struggled during the 30-minute attack, deputies said. Wilson said the teens drove Liebig’s dead body into the mountains and buried her in a shallow grave, according to an arrest report. Investigators said Saldivar told them they killed her because of her complaining. The teens “were tired of her parental style,” authorities said.