In ideal conditions I ll never support police encounters, but with the legal system that we have, they are needed.
Apart from that I like "vigilantism", in my own opinion the law could never be strong enough to deal with all of the elites and the elites almost always tend to break the law or play with it. So I think some vigilantes should always exist in the society, especially to help or aid the law at places where they don't have any jurisdiction.
I am sort of indifferent towards the attacks on the ANP leaders, TTP and ANP are both not that pro Pakistani, but still it hurts when some one dies.