Further CCTV showed the defendant moving Ms Shotter’s body around in different positions as he raped her.
The defendant then drove back to his home in Hounslow via a Shell garage where he stopped to buy cat food and mouthwash.
Ms Shotter was found dead by a passer-by in the park in the early morning of 17 July 2021.
Swabs taken from her mouth area matched DNA samples taken from the defendant.
Ms Morgan told jurors: “The prosecution’s case is that Natalie died as a result of what was done to her by this defendant.
“She was not dead at the time when the defendant was orally raping her, it will be a matter for you to consider – that this defendant went to the park for a reason.
“He would not have sought to have sex with a dead body for over 15 minutes, he was having sex with someone he knew was alive but was deeply unconscious and therefore he was raping her.”
Iidow had denied the charges against him but declined to give evidence.
Following the guilty verdict he was remanded into custody to be sentenced on 13 December.