A man was shot inside a convenience store in Everett Monday night, according to Everett police. The man, who worked at Neighborhood Convenience Mart at 115 Main Street, was shot around 9:30 p.m. according to Officer Nancy Butler. The victim was taken to Massachusetts General Hospital, where he was undergoing surgery, Butler said. His condition was unknown late Monday night and no arrests have been made, Butler said. The incident is under investigation and no further information was available.Derek J. Anderson can be reached at firstname.lastname@example.org.