The woman who allegedly fired shots at Rihanna’s Beverly Hills mansion posted a string of unhinged videos that appeared to offer a bizarre motive for the attack. Ivanna Ortiz claimed the pop megastar was “stealing” from her, was “jealous” of her and was a “witch” with a “devil’s face” in a series of clips on her YouTube channel. The 35-year-old was arrested Sunday night after shots were fired at the pop megastar’s sprawling property while she was home. Her rambling social media posts depicted