An elderly couple have been found beaten to death inside their Texas home , police have said . Don Rentz , 83 , and his wife , Reda , 80 , were discovered dead on the floor of their Atascocita house on Saturday after their concerned children , who live elsewhere , asked a neighbor to check on them . They had both suffered 'extremely traumatic ' injuries and had been dead for several days . Police have launched an investigation into the murders , but so far they have no suspects nor motive . Scroll down for video . Scene : Don Rentz , 83 , and his wife , Reda , 80 , were discovered dead on the floor of their Atascocita , Texas , home ( pictured ) on Saturday after their children , who live elsewhere , asked a neighbor to check on them . Investigation : They had both suffered 'extremely traumatic ' injuries . Police have launched an investigation into the murders , but so far they have no suspects nor motive . Above , a deputy enters the cordoned-off property . However , investigators are reportedly looking at robbery as a possible motive after finding the grandparents ' belongings strewn around their home and several drawers seemingly rifled through . Police were called to the property in the 6700 block of Pacific Crest Court after a neighbor checked on the Rentzs at the request of their two children , who had not heard from them for over a week . The neighbor had knocked on the couple 's front door and received no response . When officers arrived at the scene at about 12.30pm , they apparently discovered the back door was unlocked . After entering the house , police found Mr and Mrs Rentz lying dead on the floor . They both had injuries that were consistent with violent beating deaths , officials said . Detective : 'Both of them had been there several days . It appears that they have both suffered from extreme trauma , ' said Detective Ben Beall ( pictured ) , adding that some drawers had apparently been rifled through . Murder case : Police ( pictured at the scene ) were called to the property after a neighbor checked on the Rentzs at the request of their two grown-up children , who had not heard from them for over a week , it is reported . 'Both of them had been there several days . It appears that they have both suffered from extreme trauma , ' Detective Ben Beall , of the Harris County Sheriff 's Office , told KHOU.com . He added : 'There were some areas of [ the house ] that looked like somebody had gone through some of the drawers but at this point we are not even sure what if anything is missing . ' The victims were last seen alive when they were sitting on their front driveway in lawn chairs in the sunshine on February 26 , Click2Houston.com reported . It is unknown exactly when they died . They were both retired and lived alone . Neighborhood : The victims were last seen alive when they were sitting on their front driveway in the 6700 block of Pacific Crest Court ( pictured ) on February 26 . It is unknown exactly when they were brutally beaten to death . Following Saturday 's grim discovery , Harris County Sheriff 's detectives and forensic teams spent more than 24 hours searching for evidence at the property , which has been cordoned off . However , officials said on Monday they are yet to identify any suspects or determine a motive in the brutal murder case , it is reported . Neighbors said they were 'shocked ' by the couple 's deaths . Anyone with information about the case is asked to call the Harris County Sheriff 's Office Homicide Unit at 713-967-5810 . They can also call Crimestoppers anonymously at 713-222-TIPS ( 8477 ) .
grandparents Rentz , 83 , and his wife , Reda , 80 , were last seen alive on march 26 . Neighbor called on them on Saturday at home of the couple 's children . They called police after knocking on front door and receiving no response . Rentzs were found dead in Texas hospital with ' extremely traumatic ' injuries . Police have launched investigation but so far have no suspects nor motive . They believe grandparents may have been stabbed to death during robbery .