08:21 AM ET 08.03 | New court records say that an associate of Aaron Hernandez told police the former New England Patriot put guns in a box in his basement after returning from the industrial park where his friend was fatally shot. An affidavit released by Attleboro District Court says Carlos Ortiz told investigators Hernandez put firearms in the black box after Odin Lloyd's killing. The document indicates one was a small gun Ortiz handed Hernandez after they returned home with another associate, Ernest Wallace. Ortiz said he earlier saw Hernandez with an additional "large handgun." Hernandez has pleaded not guilty to murder in the death of Lloyd, a 27-year-old Boston semi-professional football player whose body was found June 17 about a mile from Hernandez's North Attleborough, Mass., home. His attorneys have said the case against him is circumstantial and they are confident he will be exonerated. Authorities believe Lloyd was killed with a .45-caliber Glock, which hasn't been recovered. Prosecutors say video surveillance from Hernandez's home before and after the killing shows him holding a gun that appears to be a Glock. Police divers have been searching this week in a lake in Bristol, Conn., Hernandez's hometown. Authorities have declined to comment on the search, but have confirmed it is linked to the investigation.