A knife-wielding intruder. A pig’s head on a doorstep. Running 30 marathons in 35 days. Jason Arday says he’s been through it all. Not everyone is convinced.

A knife-wielding intruder. A pig’s head on a doorstep. Running 30 marathons in 35 days. Jason Arday says he’s been through it all. Not everyone is convinced.

The academic, who rapidly rose through the academic ranks after a difficult start to life, resigned from his post at the University of Cambridge on Wednesday