The circumstances surrounding the deaths of Hollywood legend Gene Hackman and his wife Betsy Arakawa, whose bodies were found in separate rooms in their Santa Fe, New Mexico mansion, are still being investigated.

Hackman’s daughter, Elizabeth, was the first to suspect the cause of death could be gas leak, although, according to her, the mansion where her dad and his wife resided was relatively new.

The Santa Fe Fire Department and New Mexico Gas Company found no apparent signs of a carbon monoxide leak, but the medical examiner is performing tests, including checking for the presence of the toxic gas.

The call to 911 was made from the actor’s estate by an individual who identified himself as a caretaker. According to law enforcement, the call was made just before 2 p.m.

CNN obtained the 911 audio in the actor’s death.

According to it, the caretaker, who sounded emotional, said they couldn’t enter the home. However, they were able to see two unconscious bodies through the window.