A man charged with murder in the shooting death of a Canadian legal scholar in Florida has pleaded guilty to the crime.
Florida State Attorney Willie Meggs says as part of the deal, Luis Rivera will testify against his two co-accused.
Tallahassee police have alleged the killing of Dan Markel, a law professor at Florida State University who was born in Toronto, was a murder-for-hire triggered by an acrimonious divorce from his ex-wife, Wendi Adelson.
Adelson and her family have denied any involvement in Markel's death in July 2014 and she has not been charged, but her brother, Charlie Adelson, and a woman he was romantically involved with have both come under police suspicion.
That woman, Katherine Magbanua, was arrested in the case on Saturday, and Meggs says statements Rivera made to investigators "most certainly" played a role.
Police have alleged Markel's killing, at the hands of Rivera and Sigfredo Garcia, was arranged by Magbanua, who had been romantically involved with both Garcia and Adelson.
Police allege Magbanua is the only tie between Rivera and Garcia, and Markel.