Yes. A pathologist can know if there was a catasthropic event like the natural rupture of an artery (e.g. stroke, heart attack) In vivo events evolve differentl

Yes. A pathologist can know if there was a catasthropic event like the natural rupture of an artery (e.g. stroke, heart attack) In vivo events evolve differently than post mortem ones, e.g. strangling a dead body shows differently than strangling a person to death. More recently, he might have been wearing a vital signal monitor that kept logs. Nowadays probably the latter.