In addition to the human remains uncovered along an Alaska trail near the home of a family of four who vanished a year ago , police revealed Monday that a handgun and a dog were uncovered at the site as well . Police in the town of Kenai , population 7,100 , say the dog 's description matches that of the missing family 's springer spaniel . They also say the recovered gun likely came from their home less than two miles from the shallow mass grave . Brandon Jividen , 38 , his girlfriend Rebecca Adams , 23 , her two children Michelle , 6 , and three-year-old Jarraca and their dog Sparks had not been seen for 10 months , prompting massive police searches with help from the FBI . Police said they believe the gun came from the family home based on a serial number match . Found : Rebecca Adams , 23 , her two children Michelle , 6 , and three-year-old Jarraca and their dog Sparks had not been seen for 10 months . Their bodies were discovered along with the family dog 's in a pit a few miles from their Alaska home . Family dog : The family was found dead after nearly a year with the remains of their springer spaniel Sparks . So who did it ? Along with the family and the dog , police found a handgun registered to the family . They said there was no indication they were moved to the mass grave where they were found and that no outside party was suspected in the slayings . Kenai police Lt. Dave Ross said Monday the bodies have n't been identified by a coroner , but police have every indication it 's the missing family . 'The clothes , the remains , the handgun all appear to match the missing family , ' Ross told KTUU . Ross provided few other details , saying the investigation remains open , however he hinted that the gruesome fates met by the family members may have been at the hand of one of their own . He said there 's no reason to believe another person was involved in the deaths or that the bodies were moved . 'We do n't have any reason to believe from what we 've collected that they were transported there , ' Ross said . Died at the site ? Responding officers found remains and items reported missing from the home of Brandon Jividen , 38 , and girlfriend Rebecca Adams , 23 . Adams two daughters were found as well . Police say their is no indication the family was moved to the pit where they were found . Clothes and human remains were found on the trail near their home , pictured , that may finally reveal what happened after the family vanished from their home . A map showing exactly where he remains and items of clothing were found on a trail near to the family home . The grim discovery came after a person driving down a west Kenai trail on Saturday spotted items , which were reported missing from Miss Adams and Mr Jividen 's home . FBI officials are travelling to the area to help with the investigation . Police added that it would take time to positively identify the remains and to complete the investigation . The family , along with their pet dog , were last seen on May 27 last year with relatives saying it appeared that they had left their home without packing . Their two vehicles remained parked outside their apartment and their rent for June had not been paid . A police car close to the scene where the remains were found of what is believed to be that of a family who have been missing for nearly 10 months . An officer walks down a temporary trail to where police and the FBI have set up a camp while the investigation continues . The family were reported missing on June 5 , after a neighbor contacted police to report that the family home appeared to have been lying empty . Miss Adams sister , Lanell Adams said that the young mother had been 'very distressed ' during a phone call in the week before she went missing . Miss Adams who travelled to Alaska from Washington State to look for her sister , said : 'She sounded very distressed . She just told me : 'Know that I love you ' and that she had to get off the phone very quickly . Investigators begin to comb the woods close to where the remains were found . On Saturday , a person driving down a west Kenai trail spotted clothing and what appeared to be human remains . The family 's disappearance last May prompted massive searches led by Kenai police with help from the FBI . 'Growing up we always had this thing , we say 'Thou shall not lie '' and you always have to tell the truth . ' I asked her , `` Thou shall not lie , Becca , are you ok ? '' She said , `` Do n't ask me that right now . Just know that I love you . '' Meanwhile her uncle Dennis Giffords told the Alaska Dispatch News : 'You have a shred of hope that they will be found . And that shred has been taken away . ' Kenai is a city of 7,100 about 65 miles southwest of Anchorage at the mouth of the Kenai River , Alaska 's most popular sport fishing attraction . Also missing were Adams ' children , Michelle Hundley , 6 , and Jaracca Hundley , 3 . Youngsters Michelle and Jarraca , who also went missing alongside their mother Rebecca and her partner Brandon .
Brandon Jividen , 38 , Rebecca Adams , 23 , her children Michelle and Jarraca and their dog Sparks had not been seen for 10 months . Remains that matched the family were found of a family of four , a dog and a handgun registered to the family in a pit a few miles from their Kenai home . Police on Monday said evidence suggests the family died at the site and that no outside party was involved . Their Kenai home showed no signs it was broken into .