The last hope

Derrick and Jack are twins with a little sister Emma. They both are in depression.

Derrick is a handsome man and a positive minded person who always thinks twice before doing or saying something.

Jack, is handsome as him but totally opposite in terms of characteristics. He never thinks twice before doing or saying anything. He also loves having girls in his arms.

From both the boys, one recovers and the other dies. Read the story forward to find out that who dies and who discovered.