Along with Gideon Scheepers, Lötter was one of the most brutal guerrilla commandos in the Cape Colony.

[1] Lötter entered the Cape Colony during the war along with Pieter Hendrik Kritzinger.

[1] A column led by Henry Jenner Scobell was tasked with tracking down Lötter's commando.

They tracked the commando to Groenkloof, west of Cradock, and surprised them with a dawn attack.

[4] He was taken to Graaff-Reinet for his trial, and charged with treason, murdering unarmed British scouts, flogging two Afrikaners who had brought him terms of surrender, destroying railway lines, and marauding.