Universal Orlando Resort will reopen its Stardust Racers rollercoaster on Saturday for the first time since the tragic death of rider Kevin Rodriguez Zavala last month, but guests in wheelchairs must be able to walk independently in order to ride, the Orlando Sentinel has learned.

Zavala, of Kissimmee, who was wheelchair-bound, was helped into the Epic Universe roller coaster on Sept. 17 by Universal employees, according to the family. The Orange County medical examiner ruled his death as accidental and the result of “multiple blunt impact injuries.”

Attorneys representing Zavala’s family have angrily blasted Universal for statements that they say suggest Zavala’s disability played a role in his death. Zavala had spinal cord atrophy since birth.

In a statement, family attorney Ben Crump demanded Universal pause the reopening and allow the law firm’s experts to inspect it. If Universal refuses, the firm would “address Universal’s callous actions in court,” he said.

“Stardust Racers is evidence in an active death investigation,” Crump said. “Reopening the ride before our experts can examine every component is unadulterated spoliation of evidence, a grave risk to public safety, and puts profit over people’s lives.”

Crump and the Zavala family plan to speak more about Universal’s decision at a Monday press conference in Orlando.

According to an internal team member email sent by Universal Orlando president Karen Irwin on Friday, Universal has conducted an “extensive review” of the ride with “local officials,” the state of Florida, the ride’s manufacturer and an independent engineering expert to confirm “the ride systems functioned properly throughout the boarding process, the duration of the ride, and upon the ride vehicle’s return to the station.”

The emails also states, as the company maintained earlier, that Universal’s “team members” or employees followed the correct procedures. But it says that Universal is updating its “operational procedures” and signs to reinforce existing warnings for “physical eligibility requirements” of Stardust Racers and some of its rides. It does not detail what procedures have changed.

But a Sentinel review Friday of Universal’s Safety and Accessibility Guidelines shows they were updated since Zavala’s death to require guests using mobility devices to  be able to walk independently.

Riders in mobility devices on Dragon Racers Rally coaster and Monsters Unchained: The Frankenstein Experiment dark ride will also be required to be able to walk independently, also in a change from last month.

Zavala lost consciousness while riding the Stardust Racers — a fast-paced rollercoaster that reaches speeds of 62 mph and rises up to 133 feet — with his girlfriend. He was found slumped over in his seat, and witnesses said that his head kept banging on the head rest. Employees and later paramedics performed CPR on Zavala. He was rushed to Orlando Regional Medical Center where he was pronounced dead.

The Orange County Sheriff’s Office said Friday the case remains an open and active death investigation.