Christopher Edwards has told the jury at Nottingham Crown Court that when his wife, Susan Edwards, told him she had shot dead her mother, he wanted to go to the police but agreed not to when she became stressed.
Edwards claims she became agitated and that she said:
We can't. It's matricide. It's my mother. They won't understand.
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The kind gesture touched the hearts of many who shared and retweeted words of support for the officer on Twitter.
Two workers were forced into a back office as the robbers tried to force their way into a safe, police say.
Molly is back recovering at the RSPCA centre in Coventry with her new pacemaker fitted but now needs a permanent family to look after her.