Despite signing a peace accord in 2016, Colombia remains one of the most dangerous countries for social mobilization for peace, democracy, and equality. Between 2016 and 2023, 1,804 social leaders and 351 ex-combatants were assassinated. However, there has been no strong or sustained public outcry in response to this violence. This policy brief presents findings from a research project examining public attitudes toward lethal violence against social leaders and ex-combatants, with a focus on stigmatization against these actors and violence-justifying beliefs and attitudes. Drawing on data from an online survey conducted in late 2023-which is representative of the urban population with internet access-the study shows that violence-justifying attitudes toward both unarmed civilians-who did not engage in insurgent action- and former guerrilla combatants depends largely on their demands. Although public opinion tends to be more favorable toward social leaders than ex-combatants, citizen perceptions of both groups become more negative when these actors advocate for structural reforms, particularly land redistribution. This is because social mobilization for land redistribution is often associated with wartime grievances and thus perceived as a threat to the existing social order. These findings show that redistributive peace commitments are seen as potentially destabilizing, which in turn reinforces stigma against actors who advocate for redistribution. The study draws policy and practice recommendations to counteract such stigmatization, prevent violence, and support the implementation of the peace accord.