Assuming he survived their later encounter of course.
We know from Robocop accessing police records that Officer Alex Murphy has been listed as deceased, however by the end of the movie its common knowledge (well relatively common, do the general public know?) that Alex Murphy is still alive albeit rebuilt as a cyborg.
So could Boddicker be prosecuted for killing someone technically dead but actually still alive, though no longer physically human?
btw this was inspired by a recent watch of ‘Our Robocop Remake’ a collaborative experimental recreation of the Robocop movie, not surprisingly its very uneven but I would say there are enough good parts to make it worth a watch. If you’re interested it can be found on Youtube, as far as I know its free to view.