I am not Audrey

Upon this realization, a grave expression suddenly overcame Casiano's face. 

He addressed Sam in a frosty tone, "Investigate Gordon Collins and Audrey."

Sam responded promptly, his voice filled with respect, "Certainly."

As Sam was about to return to the car, Casiano stopped him again. "Furthermore..."

"Sir, your orders?" 

Casiano's thin lips parted slightly, "Inquire whether it was Gordon Collins who saved Alla, starting from the crematorium. George once mentioned that if one's body remains and brain death has not occurred, survival is possible with a heart transplant. 

Alla's body had no defects, which suggests she was stealthily relocated during her cremation. This person who moved her also replaced her heart, allowing her to survive. 

He suspects it was Gordon Collins, but his intentions remain a mystery...