He did not bleach his skin, he has a medical condition called vitiligo. It results in depigmentation of the skin, making him white.
He never molested any kids, he had known the kid who accused him for a long time, their friendship broke down and the kid filed a lawsuit to get some money out of him, attempting to ruin him. His mother was adamant that Jackson didn't do anything remotely close to what he was being accused of. Neverland Ranch was searched, nothing was found, his entire family adamantly denied accusations of pedophilia, and he even allowed a strip search of himself, to prove that the kid couldn't describe his body enough. Jackson proceeded to settle out of court, and the investigation stopped.
The other accusation of child abuse was made because Jackson had been in the same bed as a kid, not sleeping, not touching, not kissing. Elizabeth Taylor, a friend of his, was there and stated that it was simply a sleepover, nothing more.
Jackson went through a psychological analysis and was diagnosed as a regressed 10 year old, not a pedophile.
Between the two events mentioned above, he went through dependencies on various drugs, 2 of which were valium and morphine. He overcame the dependencies, but through the stress of these events and the drug use he suffered from severe weight loss, altering his appearance further.
Before you speak poorly of him, please do a little research.