Jailed ex-New England Patriots star Aaron Hernandez is serving a life sentence for a 2013 murder but is attempting to avoid trial in a double murder. Hernandez’s lawyers filed a motion last month to quash the second case, stating that Carlos Ortiz, one of the witnesses, failed a lie detector test after his official statement to the police, Reuters reported.

"The affidavit supporting the issuance of that search warrant relied extensively upon information provided by Carlos Ortiz," Hernandez’s lawyers said in official court documents. "The affidavit deliberately omitted the fact that Ortiz failed a polygraph examination administered at the conclusion of his police interview."

Hernandez’s first conviction involved the shooting of Lloyd Odin, who was slain in June 2013. Ortiz also was charged with Odin’s death. Hernandez was sentenced to life in prison in April.

The second case alleges Hernandez shot Daniel de Abreu and Safiro Furtado after an incident in a Boston nightclub in 2012.

Hernandez, who played for the Patriots 2010-12, signed a seven-year, $39.58 million contract with the Patriots in August 2012 but was released by the team in June 2013 when his involvement in Odin's murder was revealed.