Aaron Hernandez is scheduled to appear in court on Tuesday for a pretrial hearing in the 2012 drive-by killings of two men outside a downtown Boston nightclub.

Already jailed for life without the possibility of parole in the 2013 execution-style killing of former associate Odin Lloyd, the Associated Press reports Hernandez is also charged as the triggerman in the murders of Safiro Furtado and Daniel de Abreu.

Authorities have alleged the former NFL star opened fire on the two unsuspecting victims as they sat at a stoplight, after one of them did not apologize for spilling a drink on Hernandez earlier in the night.

During proceedings earlier this month, prosecutors also revealed they are now seeking access to physical evidence involving a third party. Their motion has been sealed from public view, and neither side would describe the evidence.

In the Lloyd killing, the former New England Patriots tight end is alleged to have targeted his onetime associate over concern about the victim's knowledge of other violent crimes that Hernandez may have been involved in.

The 25-year-old Hernandez is now being held at the Souza-Baranowski maximum security prison. His attorneys recently petitioned the court to have the verdict in the Lloyd case thrown out on the grounds of jury misconduct.

In one instance, lawyers contend a juror who voted to convict may have lied on the pretrial questionnaire to assure getting a seat on the panel. As a result, lead Hernandez attorney James Sultan petitioned the court for the right to subpoena documents and records related to the case.

Sultan told the court he got wind of the possible transgression from an anonymous caller. In rendering her decision to allow the attorney to subpoena certain phone records, Judge E. Susan Garsh wrote, "Whether the defendant can make a colorable showing sufficient to warrant a post-verdict interview of the juror may well depend on specific details yet to be proffered by the caller's credibility."