Article doesn't say whether the kid already had a habit before he met Silva or not. Given the back ground I would assume so.
Nice sensationalism, but doesn't sound like the family cared about the poor kid to begin with. I'd say the parents deserve the charge more than Silva.
She left him in California with her ex. This "ex" is doing all the heavy lifting parenting so I prefer to call him the dad. The Silvas took him to OK. Some say the mom knew but she wasn't the legal guardian and evidently she didn't get word to the dad .