Daniel Eric Markel was a Canadian-born attorney and a law professor, who wrote various works on retribution in criminal law and sentencing, with a focus on the role of punishment in the criminal justice system. 
Markel was killed in Tallahassee, Florida, in 2014, in a murder for hire motivated by child custody issues following Markel's divorce from Wendi Adelson, a clinical law professor and child advocate also employed at Florida State University at the time.
Four individuals were tried for the alleged murder-for-hire plot:

• Charlie Adelson, Wendi Adelson's brother and Markel's former brother-in-law
• Sigfredo Garcia
• Katherine Magbanua
• Luis Rivera

This is the full trial audio from Garcia and Magbanua's trial, with large portions of silence removed.