UPDATED with cause of death: KTLA anchor Chris Burrous’s death has been ruled accidental, according to the Los Angeles County Coroner’s office. Burrous died on Dec. 27 from what the coroner called methamphetamine toxicity, authorities said today. Other contributing factors in Burrous' death included hypertension and heart disease. Burrous is survived by his wife Mai and 9-year-old daughter Isabella. EARLIER: KTLA Morning News reporter and weekend anchor Chris Burrous died…