Hi Saint - the way I see it if there is a plea bargain it will be for all and the same with a trial. For the sake of cost alone I can't see the murder of Mark being tried separately but AE can weigh in on that.
Hey Z,
Ah, yeah, 1 trial is defintely less costly (in financial terms as well as the burden on families and friends of the victims) than 2 or more. However, if they take Mark's case first, get a guilty verdict plus max sentence, then the cost could be lower, as it's likely the other 3 cases could|would be pled out.
one reason not to go for the grand slam and prosecute all 4 cases at once is that having separate trials gives the prosecution 2 chances at securing a max guilty verdict.
Maybe they try Debra, Emma and Melanie's murders first as one trial and if, for some reason, the jury returns a hung verdict or something less than a 1st degree murder conviction, they don't necessarily have to repeat that trial ( in the case of a hung jury) or go away having secured a lesser verdict or something worse. They can proceed to try Sam for Mark's murder alone and that seems to have less potential to be a courtroom circus.
But I think that if the physical evidence is very solid against Sam for Mark's murder, the prosecution could proceed with Mark's trial first and make it easier for the jury and witnesses who are relatives of the victims.
A potential roadblock to prosecuting Sam for Mark's murders prior to prosecuting the other 3 is that the rules of evidence might not let in very much information about the deaths of Emma, Melanie and Debra.
It seems intuitive and practical from our POV to make the whole thing one trial with one narrative, but I think the prosecution might find themselves having an easier time if they separate Mark's trial.
All 4 cases at once with a huge parade of witnesses and evidence for the jury to consider and then you throw in some out to monkey-wrench the proceedings horrorcore witnesses on the stand...all it takes is one juror to decide they can't comprehend it all and decide they have reasonable doubt. And then a hung jury means doing it all again. Although at that point the judge might force them to have separate trials for the retrial(s).
Mark's trial could be fairly simple if the physical evidence is there AND there is no distracting physical evidence. I hope/assume the ME and CSI types catalogue and track down every stray piece of DNA they found at the scene. All the defense needs is for some other, unidentified DNA at the scene and they can claim that maybe it was this other DNA's owner who did the killings--especially for the first 3 murders.