Sain was 17 at the time of the shooting and is being tried as an adult. He told Gorman he felt pressured into a plea deal with prosecutors, and indicated his mother was an influence in the guilty pleas.
Sain’s new lawyer is Lucas Wilder.
The plea deal had been announced last month just days before Sain’s trial was set to start.
Sain had earlier pleaded not guilty to four murder counts, two counts of aggravated robbery, two counts of felonious assault, tampering with evidence, carrying a concealed weapon and improper handling of a firearm in a motor vehicle.
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