Rick Bowmer/APKouri Richins, the Utah mom accused of spiking her husband’s Moscow mule with a lethal dose of fentanyl and then writing a kids’ book about grief, appears to be in even more trouble.In a new court filing, prosecutors alleged that deputies in the Summit County jail searched Richins’ cell last week and found a six-page, handwritten letter for her mom that detailed a brazen plan to tamper with a witness in her case.The letter, allegedly found hidden inside a book, started with the wor
Kouri Richins Googled 'luxury prisons for rich' after husband's alleged murder nypost.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from nypost.com Daily Mail and Mail on Sunday newspapers.