On Tuesday night, a jury convicted Yang of first degree murder in the 2007 killing of Rhoni Reuter and her unborn child.
On Wednesday, the court released recordings of calls and conversations of Yang talking to a psychic and friend, Christi Paschen, about the killings.
"That's when I brought up the gun, and she started screaming. And I just let her have it," Yang said on the tapes.
Prosecutors say Yang, who's in custody awaiting sentencing, was jealous of Reuter's relationship with Gayle.