A pizzeria in St. Paul, Minnesota, allegedly went to pot as a front for an alleged marijuana dealing family. Now police have weeded out four suspects, including the owner, his mother and grandmother. On Friday, authorities arrested Ryan Dimitri Brooks Sr., 27, the owner of Papa Dimitri's Classic Pizza and Ice Cream; his mother, Rosalyn Mary Brooks, 61; grandmother Joyce Elaine Merkley, 82, and a woman he lived with, Lena Shalay Kirk, 24, according to TwinCities.com. They were each charged with multiple felonies including conspiracy to sell marijuana; cocaine possession; engaging in business of concealing criminal proceeds; and illegal possession of a handgun by a felon. Authorities began investigating Papa Dimitri's Pizza last August after getting a tip that the restaurant was rarely open and didn't seem to do a lot of business, KARE TV reports. According to the criminal complaint obtained by the station, Papa Dimitri's employees complained about a lack of heat despite the presence of pizza ovens.