OK I get it, there are a lot of sick people in this world and will upset those at their weakest moments but guess what, its called 'the social network'.. and you DON'T have to participate in it. Great, you disconnected your twitter account.. next you should do Facebook and get on with your life.. but to go as far as removing all images of a great man seems a little extreme. Just my opinion of course and certainly no disrespect to Robin Williams family. I loved and honoured this great person in all of his comedic and acting rolls.
Twitter to delete images of deceased family members on request