Prosecutors say a man accused of severely beating and burning his girlfriend’s 3-year-old son treated the toddler like an unwanted pet. Twenty-eight-year-old Roland Dow faces charges of assault, failing to get medical care and instructed him to lie to child welfare workers in 2012. During opening statements, prosecutor Kirsten Wilson showed jurors a photo of the boy as a happy, energetic toddler and another showing his injuries: head-to-toe bruising, a burned hand and a brain injury that left him nearly blind.