Cops: Mich. Mom Menaced Son's Alleged Rape Victim Lynette Sue Humphrey hit with witness intimidation charge By Kate Seamons, Newser Staff Posted Jul 27, 2016 5:00 PM CDT 52 comments Comments Lynette Sue Humphrey. (Muskegon County Jail) (Newser) – Joshua Humphrey faces life in prison for allegedly drugging and date-raping two women; his 55-year-old mother's alleged response could earn her up to 20 years in prison as well. MLive reports Lynette Sue Humphrey was last week charged with witness intimidation as a third-time habitual offender. The Muskegon, Mich., woman allegedly called one of the two women at the heart of her son's case and left her an intimidating voicemail about beating her up. Muskegon County Chief Assistant Prosecutor Timothy Maat has accused Joshua Humphrey, 34, and Larry Donell Stiff, 31, of drugging and then raping two women, one in 2013 and one in February 2016. "At least a dozen" women's cases are being reviewed to see if there's a connection, reports MLive. MLive reports "Woman A" and "Woman B" testified in court this week about their Oct. 30, 2013, encounter with Humphrey and Stiff. Woman A, a 24-year-old Grand Rapids woman, said that after meeting Humphrey online, the two went to a bar and met Stiff and Woman B there. Both women testified that they accepted a clear shot from Humphreys and felt strange soon after, though Woman A hadn't yet finished a full beer. They ended up at a home, and Woman B said, "I remember lying on the bed not being able to move. I blacked out again then there was man on top of me." Woman A's rape test returned Stiff's DNA and the prescription drug Amitriptyline. Woman B was contacted by police a week later; prosecutors want charges brought in connection with her alleged rape. The 2016 case involves "Woman C." It's unclear which woman Lynette Humphrey allegedly called.