20-year-old Karen Rodriguez was kidnapped and murdered by the Zetas Cartel.  Her mother, Miriam, investigated the case on her own and hunted down every person that was involved.  Some of the men that were in prison for killing her daughter ended up escaping and Miriam was murdered as well.

Website:
https://www.drinkingthecoolaid.com/

Resources:

• Los Zetas - Wikipedia
• Meet Miriam Rodriguez; The Mother Who Hunted Her Daughter's Killers Across Mexico - One By One (buggedspace.com)
• How a vigilante mom used disguises to hunt down cartel members involved in her daughter's murder | Daily Mail Online
• Mexican mum who investigated daughter's death is killed - BBC News
• She stalked her daughter’s killers across Mexico, one by one - World News (wionews.com)
• She Stalked Her Daughter’s Killers Across Mexico, One by One - The New York Times (nytimes.com)
• Mexico: Mother Took Down the Drug Cartel Who Killed Her Daughter (insider.com)
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