https://www.businessinsider.com/most-violent-cities-in-the-world-in-2018-2019-3
https://www.osac.gov/Pages/ContentReportDetails.aspx?cid=23791
https://www.osac.gov/Pages/ContentReportDetails.aspx?cid=25909
https://www.theguardian.com/world/2019/jan/09/brazil-ceara-violence-fortaleza-gangs-bolsonaro
https://www.osac.gov/Pages/ContentReportDetails.aspx?cid=25537
https://www.latimes.com/world/la-fg-mexico-tijuana-violence-20190314-story.html
https://www.cfr.org/backgrounder/mexicos-drug-war
https://www.news.com.au/travel/travel-updates/warnings/bodies-line-popular-caleta-beach-in-mexico/news-story/36df21604734d69a7c745115aa63f5d2
https://www.latimes.com/world/mexico-americas/la-fg-mexico-tijuana-drug-violence-20190130-htmlstory.html
https://mexiconewsdaily.com/news/46-assassinated-in-4-days-in-guanajuato/
https://www.dallasnews.com/news/mexico/2018/08/06/juarez-murders-reach-nearly-200-month-mexicos-new-president-prepares-face-violence
https://www.dallasnews.com/news/mexico/2018/08/06/juarez-murders-reach-nearly-200-month-mexicos-new-president-prepares-face-violence
https://www.forbes.com/sites/nathanielparishflannery/2018/11/06/splinter-groups-of-cartel-gunmen-drive-rising-violence-in-tamaulipas-mexico/#98e6ef9407de