Viper was the beloved of Bill Margold.

She up and left one day. He was heartbroken.

He says it was because she had implants, and she went nuts as her body tried to expel them (I am not making this up).

He told Luke Ford that the only time he's ever heard from her was when she sent a blank postcard, or some such.

That tattoo she had was horrendous and frightening. Honestly the girl looked like the physical embodiment of meth addiction, but that's just my opinion.