Six more families of the Sandy Hook Elementary School massacre victims sued right-wing radio host and conspiracy theorist Alex Jones for alleged defamation Wednesday for claiming the shooting was a hoax and the relatives are paid actors. An FBI agent who responded to the shooting joined the families as a plaintiff in the lawsuit filed in Bridgeport Superior Court in Connecticut. The families of two other victims filed similar defamation lawsuits against Jones last month in Travis County, Texas, where his media company, Infowars, is based. The families say Jones' comments have tormented them and subjected them to harassment and death threats by his followers. After the first two lawsuits were filed last month, Jones responded in a YouTube video, saying that the families are being used by the Democratic Party and the news media and that he believes Sandy Hook really happened." Also named as defendants is Wolfgang Halbig, who the families say is a frequent guest on Jones' show who also questions whether the school shooting actually happened. Halbig, 71, a former police officer ... said Wednesday that he does believe people died in the shooting, but authorities have refused to answer his questions. The lawsuit filed Wednesday cites ... the case of a Florida woman, Lucy Richards, who believed the shooting was a hoax and was sentenced to prison last year for threatening the father of one of the slain children.