<strike>My opinion: If a trader opens fire first and dies 4 hour rule should apply. however if the pirate fires first (more likely scenario) the 4 hour ruld should NOT apply.
In the second scenario this would be a pirating event that went bad. Most likely the trader was not able to get an effective shot off or drain his shields below half. Trader is still piratable.
In the first situation the Trader opens fire initiating PvP and all pirating is over. 4 hour rule applies. Trader may do this because he feels he has an advantage or has a chance to get away.</strike>
Now that I read this none of it makes sense! My head hurts.