Take note, all those who create fake internet personas, all those who make anonymous comments and then swear it wasn't them...
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It was this woman's IP address that sealed her fate.
Unfortunately, as the article correctly points out, it is easy for someone in the know to spoof an address. Virus writers do it all the time to cover their tracks. In this case tho, the murderess was not sophisticated enough to cover her tracks. WHo says criminals are smart?