The Murder of Mark Kilroy

In 1989, college student Mark Kilroy and three friends took a trip to South Padre Island in Texas to celebrate Spring Break.  It was supposed to be a fun time to blow off steam and relax after a busy few months at school.  Unfortunately, the trip ended in tragedy with Mark's murder.  Police would uncover a terrible crime scene based on ritual human sacrifice, drug smuggling and the cult leader who was responsible for all of it. 

Sources:

• allthatsinteresting.com
• bizarreandgrotesque.com
• texasarchive.org
• texasmonthly.com/true-crime/the-work-of-the-devil/
• wickedwe.com/mark-james-kilroy
• investigationdiscovery.com/crimefeed/murder/sacrificed-on-spring-break--the-satanic-drug-cult-murder-of-mark
• Buried Secrets: A True Story of Serial Murder by Edward Humes