What or who killed Dr. Professor Arne Burkhardt?

‘The pathologist Prof. Arne Burkhardt (1944-2023), whose educational work on the dangerous mRNA injections was highly valued, died suddenly and unexpectedly.’

Can we ask the question? He was over the target and is it conspirational to ask? Our daily lives are at risk due to the fight we/I wage against pharma, governments and inventors of mRNA technology. Bourla, Bancel etc. We contrarians are in danger and we must recognize this.