New court documents released today state that police believe former New England Patriot Aaron Hernandez may have been the shooter in the unsolved 2012 double murder in Boston's South End. 

A Connecticut judge unsealed a search warrant affidavit that was filed by police requesting permission to search and investigate a seized silver SUV located at the home of Hernandez's uncle, which is the vehicle police believe was used in the July 6, 2012 drive-by shooting of Safiro Furtado and Daniel Abreu. 

According to Boston.com, the affidavit states that there is "probable cause to believe that Aaron Hernandez was operating the suspect vehicle used in the shooting homicides of Daniel Abreu and Safiro Furtado, and may have been the shooter."

However, the affidavit does not offer new information in the case against Hernandez, who is being charged with the June 20, 2013 murder of Odin L. Lloyd in North Attleborough. Hernandez pleaded not guilty to a first-degree murder charge, and is being held without bail at the Bristol County jail. 

As of now, Hernandez has not been charged in connection with the 2012 double murder. Yet, the affidavit raises the possibility that Hernandez may have played with the Patriots in the 2012-2013 season after he committed murder. 

Large portions of the affidavit, which was prepared June 28, were redacted. The document did not reveal what police found in the search. That information will be revealed on a search warrant "return," which has not yet been released. 

The affidavit states that an anonymous tipper told Boston police that the South End murders and Lloyd's slaying may have been linked. 

Days after Hernandez was linked to Lloyd's murder, police received a tip from a nightclub security staff member who said he overheard a conversation that links Hernandez to both the 2012 slayings and the 2013 murder. 

Police looked at surveillance video from the night of the shootings, and saw Hernandez walking into a nightclub right after the victims, then leaving the club minutes later. He then drove the vehicle around the block multiple times hours later as the victims left the club and went to their vehicle. 

No one has been arrested for the double murder, but police have recovered the .38-caliber pistol that was believed to have been used in the slayings. 

Police believe the SUV may have been stored in the garage of Hernandez's uncle for more than a year following the shooting. 

Investigators wrote in the document that they wanted to search the car because "gunshot residue may still exist in the vehicle since there is reason to believe that the vehicle has remained untouched and stored in an enclosed garage for close to a year."

Investigators believe that Lloyd may have had information about the 2012 slayings, which may have been the motive behind his murder. 

Authorities have also released a search warrant affidavit used to get the recording of phone calls made from jail by Alexander Bradley, an associate of Hernandez who police believe was present the night of the double murder. He has been in prison since he did not respond to a grand jury subpoena.