( CNN ) -- Authorities believe two Arizona prison escapees and their alleged accomplice may be in the Yellowstone National Park area of Montana and Wyoming , based on recent information , the U.S . Marshals Service said Sunday . John Charles McCluskey , 45 , and Tracy Province , 42 , are described as armed and dangerous . They have been at large since fleeing an Arizona prison on July 30 . A third escaped inmate , Daniel Renwick , 35 , was arrested the day after the escape in Rifle , Colorado , where he got in a shootout with police . David Gonzales , the U.S. marshal for Arizona , told CNN that the remaining fugitives are now suspected in the killings of a couple whose bodies were found Wednesday in New Mexico . `` There was evidence that ties them , our suspects , who escaped from prison , directly to their murders , '' Gonzales told CNN . Gonzales said the fugitives have frequented truck stops and campgrounds . He said McCluskey and Province have `` white supremacist leanings '' and could be looking for `` people who are sympathetic to their cause . '' Yellowstone sits at the northwest corner of Wyoming and extends a short distance into Montana and Idaho , both states where white supremacist groups have attempted to take root . Thomas Henman , a spokesman for the Marshals Service , said Arizona prison officials have said the convicts belong to the Aryan Brotherhood prison gang , but there was no concrete information to tie them to white supremacist groups outside prison . A team of marshals from Arizona has been working in the Yellowstone area since Sunday morning , along with marshals from Montana and Wyoming and officers from the National Parks Service . He would n't divulge the source of the information that has led authorities to Yellowstone , but said it is believed to be very credible . A $ 40,000 reward is being offered for information leading to the escapees ' arrest , he said . McCluskey was serving 15 years for attempted second-degree murder and other charges , while Province was serving a life sentence for murder and armed robbery . A female accomplice helped Province , McCluskey and Renwick escape by throwing cutting tools over a prison fence , according to Charles Ryan , director of Arizona 's Department of Corrections . Authorities have identified the suspected accomplice as 43-year-old Casslyn Mae Welch , McCluskey 's cousin and fiancee , CNN affiliate KTVK reported . `` Information developed within the past two days indicated the escapees may be hiding in the Yellowstone Park area within Montana and Wyoming , '' U.S . Marshals said in a statement Sunday . `` It is believed Tracy Province has separated from John McCluskey and Casslyn Welch . '' The New Mexico Department of Public Safety said Saturday police have forensic evidence linking Province and McCluskey to a couple found slain in New Mexico last week . Two burned bodies were found in a camper Wednesday in Santa Rosa , New Mexico , according to Peter Olson , spokesman for the department . New Mexico police have yet to positively identify the burned bodies , but believe they are Linda and Gary Haas of Oklahoma , whose truck was found 120 miles away in Albuquerque , New Mexico , according to Olson . He would not elaborate on the nature of the forensic evidence . Earlier Saturday , authorities arrested McCluskey 's mother and charged her with aiding the escape . Claudia Washburn , 68 , was arrested in Jakes Corner , Arizona , and faces charges of conspiracy to facilitate escape and hindering prosecution , Deputy U.S . Marshal Thomas Henman told CNN . Washburn , who is Welch 's aunt , allegedly provided `` financial and other aid '' to McCluskey , Province and Welch . A search warrant was executed , and Washburn was being held on $ 250,000 bond at the Gila County Jail in Globe , Arizona , the U.S . Marshals said . In an interview with CNN Arizona affiliate KTVK , Washburn 's husband said that he 'd shoot his stepson McCluskey if he saw him again . `` I told the U.S Marshals I have n't got that long to live , '' Jack Washburn said . `` ( I 'd ) serve my time . '' After the break , the inmates and the accomplice abducted two truck drivers at gunpoint on Interstate 40 outside of Kingman , Arizona , and hijacked their 18-wheeler , according to the Mohave County sheriff 's department in Kingman . The truck drivers and the rig were released five hours later in Flagstaff , about 135 miles to the east . The fugitives were later believed to be driving a 2002 silver Volkswagen Jetta purchased last Saturday in Phoenix . They were later spotted on a security camera in a bank inside a grocery store in Goodyear , Arizona , according to . Barrett Marson , spokesman for the Arizona Department of Corrections . CNN 's Chuck Johnston contributed to this report .
Montana . Marshals : The Two inmates are believed to have split up . The escapees may be in New Mexico or U.S . Police : Evidence links the inmates to burned bodies found in U.S .