The 35-year-old with paranoid schizophrenia could be heard saying "I can't breathe" as he was handcuffed in south-east London.
The 34-year-old was found in a 65ft-deep ravine on Wednesday, two days after being reported missing.
The former Welsh minister killed himself after being sacked over claims of inappropriate behaviour towards women.
A coroner has concluded that all eight victims were unlawfully killed.
A pupil flicked a 2x2cm piece of cheese at Karanbir Cheema.
The Cardiff City striker was onboard a small plane which vanished on 21 January.
Natalie Putt left the house to buy cigarettes in September 2003 and never returned, inquest hears.
"It is possible that they would have been able to prevent PC Palmer suffering fatal injuries."