A group made their voices heard Saturday, demanding transparency from town leaders and the police chief in Hopkinton , Massachusetts, where a convicted sex offender operated a pizza shop and continued to get a business license in town for years, despite a number of red flags.

Saturday's protest comes after the NBC10 Boston Investigators reviewed years of court and town records, uncovering a troubling pattern of behavior in Hopkinton.

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Residents had reacted strongly last week to our NBC10 " Small Town Secrets " investigation, and on Saturday protesters held signs reading, "We want accountability" and "Demand the truth." All of this is in reference to Petros "Peter" Sismanis, who was the operator of "Hillers" --

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