You sound like an attorney. I'm not, so I'll speak as a member of the jury.
From what I've read here (not the whole story of course) I'd give Beck the benefit of the doubt.If I had the power, I'd also instruct Denmark to thank Beck for saving her from the perp.
In Mrs. Denmarks position, I'd also thank Mr. Beck, and leave it at that.
However, Mrs. Denmark has the right to collect some damages from Mr. Beck, if she so desires. Obviously, most of the fault lies with Mr. Logan, and Mr. Beck should only be required to pay some percentage of the total damages due Mrs. Denmark, in proportion to his share of responsibility.