Chemistry reaction

This incident happened in Menado, this girl die suddenly with five of her five senses bleeding, after they investigated this incident, they know that this girl was not dead because of suicide or killed, but because lack of food poison. This girl have a habit, that drink Vitamin C every day. This was not the problem. The problem is that night, that girl ate a lot of shrimp. Actually, if only a shrimp, that isn't a problem, her housemate was ok, when they ate that shrimp, and nobody past away. But, because shrimp contain Arsenic Pentoxide (As2O5), and beside, after she ate the shrimp this girl drink Vitamin c, then.. the chemistry reaction happened in her stomach that turn As2o5 into Arsenic Triox..

i received this email from my friend ^^
hope it's usefull..