What is the common opinion around the world about who killed former
swedish primi minister Olof Palme in 1986?

Palme's assassination in 1986 remains unsolved to this day, despite
the fact that Swedish police arrested Christer Pettersson for the
crime, and Pettersson was later tired and convicted.  The conviction,
however, was overturned by a higher court.

This Wikipedia article:


http://en.wikipedia.org/wiki/Olof_Palme_assassination
Olof Palme assassination



provides an excellent overview of the main whodunit theories
surrounding the murder -- including some intriguing conspiracy
theories -- though from what I can see, there is not one prevailing
theory that can be labelled "common opinion".


I trust that's what you were looking for, but if there's anything more
I can do for you regarding the assassination of Olaf Palme, just let
me know.


David

Lee Harvey Oswald, alone and unaided.

Contrary to popular opinion, it was Oswald's double who was gunned
down by Jack Ruby's double.

So, LHO struck again!