‘Monster’ necrophiliac stabbed estranged wife, 25, to death before digging up body from desert grave & raping corpse

A TWISTED husband has admitted killing his wife, burying her in a shallow grave and digging it up to rape her corpse. Zarbab Ali, 28, confessed to being a “monster” for murdering and violating Rachel Castillo, 25, in a horrifying police interview. The killer was found guilty last week of stabbing his estranged wife to…