sentences:  Reingruber could not rule out Adolf Gump's potential involvement in the murders at Hinterkaifeck, and he instructed the corresponding "gendarmerie" stations to ask for an alibi for the last few days in March 1922.In 1951, prosecutor Andreas Popp investigated Adolf's brother Anton Gump in relation to the murders at Hinterkaifeck.The sister of the Gumps, Kreszentia Mayer, claimed on her deathbed that her brothers Adolf and Anton had committed the murders.