The jury can only convict her of either charge if they believe *beyond reasonable doubt* that Helen intended to kill or wound Rob.
Anna has demonstrated to them that Rob has been violent in the past, he put the knife into Helen's hand, and he has form when it comes to violence and rape (Jess's evidence) Neil and Ian have told the court that Helen is not normally violent, and that for her to have taken the action she did, something very serious must have occurred to trigger it.
Unless the jury believe Rob's ham-acting, and disbelieve both Jess, Anna, Neil and Ian, I feel that there *is* reasonable doubt that she intended to wound or kill.
I loved Brute's outburst, the highlight of the whole trial for me: Jezebel, The boy (Henry), soiled goods, little hussy, gold-digging tart, these women of yours.
Here is a little audio clip for your enjoyment:
https://soundcloud.com/user-237815580/the-archers-nigel-screams-as-he-falls-of-the-roof-of-lower-loxley