As soon as Helm collected the data regarding Todorović's intelligence network, he arrested him again and sent him to the Mathausen concentration camp on September 9, 1943.
Setelah Helm berhasil mengumpulkan data mengenai jaringan intelijen Todorović, ia ditangkap lagi dan dikirim ke Kamp Konsentrasi Mauthausen pada tanggal 9 September 1943.