Dumbledore would know about the horcruxes so WHY not give them better protection immediately.

Be NICER to your supporters I mean if he was NICER Narcissa Malfoy might have said that Harry wasn't dead

Don't listen to prophecy you only make them true if you fulfil them. I mean did he not know that it was made by TRELAWNEY you know, the MASSIVE FRAUD!!!

Finally, why be a MASS MURDERER doesn't he know if anyone caught him they would sentence him to DEATH

THANK YOU FOR READING! If there is any thing I have missed then pls mail me