WATERFORD, Wis. (AP) — A Waterford man is accused of failing to tell six people he was HIV-positive before having unprotected sex with them.The Milwaukee County District Attorney says 42-year-old Jason Taufner is charged with six counts of recklessly endangering safety. He faces a maximum penalty of 84 years in prison.

According to the criminal complaint, one victim said she and Taufner were tattoo arists at Trust Tattoo. She says she asked him if he had any sexually-transmitted diseases and that he said he was clean.

The criminal complaint states that Taufner frequently had sex in the back room of his tattoo shop. One of the victims has tested positive for HIV.

Taufner also allegedly worked at Sacred Skin Tattoo.

Authorities say that as a condition of his last sentence, he was ordered to inform any sexual partner of his HIV status.

The Milwaukee County District Attorney’s Office has issued a press release so other potential victims can come forward. Anyone who believes they had sex or were tattooed by Taufner are asked to contact the Milwaukee County District Attorney’s Office of Sensitive Crimes Unit at 414-278-4617.

A phone number for Taufner could not be found.

Shereen Siewert contributed to this story.