David Challen says his mother Sally Challen, 75, was feeling "emotionally distressed" as she launches a landmark appeal to get her murder charge overturned.

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