Whitney Houston's Nephew Blames His Stepmom For Family Tragedies

Whitney Houston's nephew has penned a no-holds-barred open letter to the Houston clan, alleging "obsession, jealousy and greed" on the part of his stepmom, Pat Houston. As RadarOnline.com reported, Whitney and her daughter, Bobbi Kristina Brown, tragically both died in mysterious circumstances. Pat, who Jonathan slammed as a "selfish, cold hearted woman," acted as Bobbi Kristina's