Is This a Murder or Suicide?

RahulHi, I am an optimist, love nature, believer in God and believe that nothing is impossible. I like to spread awareness about important issues and to motivate others. My hobbies are to play chess, solving puzzles and spending time with friends. You can connect with me on:- Facebook :- https://www.facebook.com/rahul.tandon.336 Google+ :- https://plus.google.com/109851478387572149625 Email id:- [email protected]

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Our Logic says that usually people hold objects with their primary hand, so holding gun in one and holding cigarette in other hand seems unusual.

Then the blood spot on wall also indicate that there are more chances of murder than suicide.
What do you think? Give some logics also to support your answer.
Lets see who can come up with the best logic !