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No motive was known, but authorities said the shooter left a rambling and mostly incoherent letter at the scene indicating he wanted to kill himself.
The letter also explained in detail how Oliveira wanted his corpse to be cared for -- bathed and wrapped in a white sheet that he left in a bag in the first room where he said he would start shooting. The letter also states that the gunman should not be touched by anyone who is "impure" unless they wear gloves.
"If possible I want to be buried next to my mother. A follower of God must visit my grave at least once. He must pray before my grave and ask God to forgive me for what I have done," read the letter, portions of which were posted on the Globo television network's website.
Don't even THINK about it.
Burn him.