Shayanna Jenkins, Aaron Hernandez's fiancee, is under investigation by police still searching for the murder weapon they say he used to kill Odin Lloyd.
Investigators believe Hernandez may have asked Jenkins to get rid of the weapon shortly after the victim's body was found about a mile from his home.
Warrants for a Bristol, Conn., storage facility suggest he may have instructed her to take a gun safe or lock box out of his home in North Attleboro, Mass.
The warrants claim Shayanna Jenkins was seen on surveillance video bringing an object the size of a lock box or safe out of the house and into her sister's car.
She allegedly asked to use the vehicle the day after Lloyd was killed to go to the bank, and returned home about 35 minutes later without the object.
Other court reveal that defendant Carlos Ortiz told police that Hernandez put two guns, including the murder weapon, in a box and stored it in his basement.
The warrants claim that Jenkins may have dumped the weapons in the woods or may have taken them to a Bristol storage unit that Hernandez paid for.
Police searched U.S. Storage seizing company records and a silver lock. Investigators discovered the unit after combing through Hernandez's financial records.
The gun has still not been recovered. Jenkins did not respond to an email Saturday seeking comment. Hernandez's attorney did not comment either.
Aaron Hernandez, cut by the New England Patriots and held without bail indefinitely while awaiting trial, has pleaded not guilty to a murder charge.
In another development, his cousin, Tanya Cummings-Singleton, has been jailed in Massachusetts since August 1, but authorities won't say why.
The Hartford Courant has reported she refused to testify in front of a grand jury investigating the Odin Lloyd murder and is being held in contempt.
After Lloyd's killing, Cummings-Singleton allegedly bought a bus ticket for Ernest Wallace, who's believed to have been with Hernandez the night of the murder.
Wallace later surrendered in Florida, but denied a charge of accessory to murder.