[3] Isberg was born in Kinsarvik, the son of farmer Samson Samsonsen Stana and Anna Sveinsdatter Skjedås.
Ringeneie was convicted for the murder of his wife Anne, while his lover Birgit received a life sentence.
Editor Christian Monsen reported on the execution in his newspaper Trondhjems Stiftstidende, where he particularly focused on the behavior of the audience.
Isberg had made the long journey from Bergen to Alta, and about one thousand spectators watched his beheading of the two.
[3]: 333–339 In 1863, Isberg was responsible for the beheading of Ole Hansen Stokkestadeie in Vaage Municipality, who was convicted for the murder of two persons.
[3]: 340–345 Isberg's last commission was the beheading of Friedrich Wilhelm Priess and Knud Christian Frederik Simonsen, who had murdered a farmer in Christiania.