In the news

As he is a spy and most likely killed by another spy or somekind of professional. Surely any DNA and other fragments of evidence foudn at the scene could have all been planted?

Plus you can't really trust the police in these situations either, there is a whole lot of bent coppers in the force at all levels.

yes, i'm sure its standard practice for all professional spys to just leave the body knocking about in a holdall