Skydive Arizona said in a statement at the time that witnesses saw Wick's parachute deploy successfully, but noted that the "canopy was turning" as she continued to descend.
The witnesses said they did not see Wick take corrective action to keep the canopy in place, and said her reserve chute never deployed.
"During the freefall, for reasons that remain unknown at this time, his parachute did not deploy, resulting in fatal impact," police said in a statement.
On January 24, Ann Wick, 55, died while she was skydiving at Skydive Arizona.
Investigators are coordinating with the Federal Aviation Administration and are trying to speak to any witnesses who saw the incident.