David Challen says his mother Sally Challen, 75, was feeling "emotionally distressed" as she launches a landmark appeal to get her murder charge overturned. <br /> <br />Ms Challen killed her husband Richard in 2010 and is hoping to overturn the charge on the defensive ground of coercive control. Report by Alibhaiz. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn
