For those who don't know, Ed Kemper hated his mum SO MUCH that he cut her head off and raped it, then put her vocal cords down the sink.

After Edmund Kemper killed and decapitated his mother, he tore out her vocal cords and shoved them down the waste disposal.

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Ed Kemper's brother lives in fear that his huge murderous sibling will use his IQ to get out of prison... and hunt him down and kill him.

There have been few photos of Ed Kemper since he was jailed in 1973 for eight counts of murder - including that of his own mum... until now