No it's NOT like that. It would be liek that if I had added Jesus doing miracles into the account. All accounts are of the SAME story, and if you read along(with the verse references I gave) then you'll see that ALL four stories START at the SAME time.
No it doesn't...here I'll give you an analogy. Lets say I have three different people talk about my day(May 18th) Lets say one account says I wake up at 6 A.M, do school, eat lunch(12 P.M), and later on I go to sleep at 7 P.M....Another account says I wake up at 6A.M wash my hair, do my schoolwork, go to the gym(2P.M), and then I hang out with friends at 4P.M, the third says I wake up at 6A.M get my schoolwork done, eat pasta for lunch, watch a T.V show at 5:30, and go to bed at 7. Now lets say that someone then decides to write an account of my ENTIRE day. They'd say I woke up at 6 A.M, wash my hair, do my schoolwork, eat pasta for lunch, go to the gym, hang out with my friends, watch a T.V show, and then go to bed. Do you see how they ALL fit together. That's all I did with the resurection account.
No it doesn't, Mark just doesn't FINISH the story.