as others have said, everyone deals with death in their own way. some clam up and get on with life, others mope around crying sayin how unfair it all is.
personally i have had 3 people close to me die, one was my grandfather, one was a mate at school who just collaped one day and one was a very close family friend and incidentaly the first person to take a picture of me after my birth.
in each and every case i have dealt with it the same way which suggests to me that its how i will always deal with death. i get the news and im shocked, after about 12 hours i break down crying for about 20 mins and then i pick myself up, realise there is nothing i can do about it and that i have to live my own life because i may not have one tomorrow. then im fine until the funeral where i'll cry again for a little and then once again pick myself up and get on with it.
i remember the dead of course, and at times i still have a few moments where "its not fair i want them back" but what can you do? i know when i die i dont want everyone moping around for weeks on end. i want them to get up and live whatever they have left.