A woman who claimed an intruder busted into her California apartment and killed her boyfriend more than two decades ago has been charged in the cold-case slaying after an anonymous letter was sent to investigators, police said. Jade Benning, who was living in Santa Ana in January 1996, told cops a black suspect forced his way into the apartment she shared with her 22-year-old boyfriend, Christopher Hervey, and stabbed her partner several times during a 3 a.m. attack, killing him, cops said Tuesday. Benning, also 22 at the time, gave “general statements” to investigators about the alleged break-in — during...