The video provided by the police shows that Ms. Barson’s vehicle slammed into the passenger side of Williams’s S.U.V. as the S.U.V. appeared to be leaving the intersection.

Although the information released Friday appeared to help Williams, Maj. Paul Rogers of the Palm Beach Gardens Police Department said that “the investigation is still underway and a final determination of fault has not been made at this time.”

He added that no citations had been issued, no arrests had been made and no charges had been filed in connection with the crash. A daughter of Jerome Barson has filed a wrongful-death lawsuit against Williams, citing unspecified damages.

In a statement, Michael Steinger, a lawyer for the Barson family, maintained that Williams was at fault.

“There is nothing that disputes Ms. Williams was in the intersection on a red light, and the witnesses clearly confirm the Barsons had a green light and lawfully entered the intersection,” Steinger said in the statement.

In a statement posted on Facebook on June 30, Williams said she was devastated “and heartbroken by this accident. My heartfelt condolences go out to the family and friends of Jerome Barson and I continue to keep them in my thoughts and prayers.”