Incorrect.
The defence don't need to disprove anything.
It is for the defence to prove beyond reasonable doubt, i.e. the jury must be sure.
In terms of a whole life tariff for a single non-political murder....not so. Wayne Couzens offending was unique.....as the judges sentencing remarks confirm.
It really helps to understand the process.
LL probably only needs to be convicted of a single murder to receive a whole life tariff. Wayne Couzens, the cop who murdered Sarah Everard, received a whole life tariff, because he abused his position of trust and power as a police officer to abduct her. He was seen on CCTV flashing his badge...
www.websleuths.com