A cikin Tsohon Roma, yayin da aka yarda da kisan kai da farko, daga baya an dauke shi laifi ne ga jihar saboda tsadar tattalin arzikinsa. Aristotle ya la'anci kowane nau'i na kashe kansa yayin da Plato ya kasance mai rikitarwa. A cikin Roma wasu dalilai na kashe kansa sun haɗa da mutuwa ta son rai a cikin gwagwarmayar gladiator, jin laifi kan kisan kai, don ceton rayuwar wani, gaba ɗaya sakamakon makoki, daga wulakanci, da kuma tserewa daga yanayin da za a iya shawo kansa, kamar cin zarafin jiki, cin zarafin laifi ko cin zarafin mutum.
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