DELANO — Kristopher Thomas has been in prison since 2010, when he was sentenced to 50 years to life for killing a man who identified himself as a member of a rival Los Angeles Crip gang, according to ...

The investigative minds at How to Survive examine the deadliest prison gangs and how to protect yourself if trapped in their environment.

President Bernardo Arévalo called an overhaul of his country’s prison system an “absolute priority” after 20 inmates accused of belonging to the Barrio 18 group were found to have escaped undetected.

Guatemala faces ongoing challenges with gang activity, and recent events highlight how these groups test the system’s limits. On October 12, officials announced that 20 leaders from the Barrio 18 gang ...