Surveillance cameras showed the car believed to be carrying Hernandez and the others at the southeastern Massachusetts industrial park where Lloyd's body was found, according to authorities.
Another Hernandez defense attorney, Charles Rankin, asserted that "not one shred of evidence has been presented yet."
"At the end of the day, we're confident that Aaron is going to be exonerated and we look forward to that process," Rankin said.
Bristol County District Attorney Sam Sutter said authorities have more than circumstantial evidence against Hernandez.
"There's a tremendous amount of evidence," he told reporters.
One of Lloyd's sister, Olivia Thibou, said Friday that "these are very difficult days.
"We just keep praying to get through this," she said.
The next court hearing is scheduled for October 9, when the judge will hear a defense motion to extend and make more stringent a gag order, Sutter said.
Hernandez has been sitting in a jail cell as his former team, known for its stellar offense, contends for another Super Bowl title. The Patriots open their regular season Sunday against the Buffalo Bills.