Those that didn't know he died weren't ever upset. When they heard the news they got to focus on the resurrection. We also don't need to be upset when somebody dies. We already know that they are in heaven with no pain no sorrow, only that ultimate Joy.
we are upset because we miss them, we regret not saying certain things, we worry about those left behind and how they will go on, we worry it will happen to others of the same age, but we shouldn't. We don't have to worry. God has got this. God knows what he's doing.
I'm not saying to not be sad, to not comfort each other, to not take time to grieve, to miss them, to love them. It's healthy but it's not the only way. You can grieve and feel joy at the same time. You can be angry and upset and still believe in eternal life. You can worry about how you will go on and what life is going to look like, but God is always in control.
You will go on for as long as God's plan allows.
You will have eternal life too.
You will experience the ultimate choice.