Extradition Sought Of Mass Murder SuspectJASPER, Term. »APi -Robert Lee Haggart, acc used of killing his estranged wife and six members of her family, refused to speak to authorities preparing to extradite him to Michigan to face the murder charges.He sat in the chair anddidn't say a word, ClareCounty, Mich., SheriffGhazev Aleck said earlv to* • *day. “I told him I would be taking him back and he shookhis head OK. He didn’t seem hostile.Aleck said he spoke to Hag-gart at the Marion County Jail Friday evening, shortly after the sheriff and three other Michigan law enforcement officials arrived in Tennessee.Haggart, 31, signed extradition papers Friday.Marion Countv authorities*said. Aleck said he would accompany Haggart today on the 8NFmile trip to Clare, Mich., from the Tennessee jail where the man had been held since his arrest near Jasper Thursday night.A detective from the Clare County sheriffs department and two from the Michigan State Police crime lab planned to stay in Tennessee to examine the car in which Haggart was arrested and aloaded 38-caliber pistol foundin the car. Aleck said.Marion Countv Sheriff•»Iioyd Hood said the pistolmav have been used in two of *the murders, although authorities originally indicated all the victims had been slain by shotgun blasts,Marion County authoritiesalso said thev would turn*over to Michigan police a pair of blood-stained bluejeans and boots found in theHaletown, Tenn., apartment where Haggart had been staying.Haggart was arrested at a rural roadblock near Jasper, about 20 miles west of Chattanooga, by Hood and one of his deputies. The man had been spotted Tuesday, the day of the killings, in the Farwell, Mich., area where the slayings occurred, witnesses told authorities. When he was arrested. Haggart was driving a 1980 Buick Le Sabre belonging to one of the victims, his mother-in-law,Vaudrey Post, 42.The others found deadTuesday at the Post home in »rural Farwell were Haggart*s estranged wife, Garnetta Haggart. 23; Garnetta s father, George W. Post, a 53-year-oid letter carrier: another of Post’s daughters.Helen Gaffnev. 29, and her three children: Angela, 10, Tom, 8, and Amy, 4,Haggart and his wife were to have appeared Wednesday in Clare County Circuit Courtfor a divorce hearing.On Thursday, Glen C. Davis. Haggart's roommate in* Haietown, said Haggart left the town early Monday on a bus headed for Michigan.He said he had some money in the bank up there and was going to buy him a car, Davis said. ”He got back Wednesday night and had him a car.Davis, owner of Glen’s res-taurant, said Haggart “pulled around back of the restaurant and had a few beers. We shot the breeze for awhile. He was feeling pretty good He said all his folks in Michigan were fine.Michigan Department of Corrections officials said Haggart had served a little more than two years of a two-to 10-year prison term for taking indecent liberties with a female. He began the sentence in May 1975 and was paroled in July 1977.Haggart also had been sought by police on bad check charges in a warrant issued in Gratiot Countv. Aleck said.