Conversation so far:
Why was there an assassination attempt on Hendrik Verwoerd?
David Pratt claimed he had been shooting 'the epitome of apartheid'. However, in his defence, he stated he only wanted to injure, not kill, Verwoerd.
Why did David Pratt want to hurt Verwoerd in any capacity?
The court accepted the medical reports submitted to it by five different psychiatrists, all of which confirmed that Pratt lacked legal capacity and could not be held criminally liable
Why couldn't Pratt be held liable for the attempted assassination on Verwoerd?
The court accepted the medical reports submitted to it by five different psychiatrists, all of which confirmed that Pratt lacked legal capacity
What else can you tell me about the assassination attempt on Verwoerd other than why was an assassination attempted, why Pratt would want to hurt Verwoerd, and why Pratt could not be held liable?
Colonel G. M. Harrison, president of the Witwatersrand Agricultural Society, leapt up and knocked the pistol from the gunman's hand.
Was anyone else involved in thwarting the assassination attempt on Verwoerd besides Colonel G. M. Harrison?
After the pistol fell to the floor, Harrison, with the help of Major Carl Richter, the Prime Minister's personal bodyguard, civilians and another policeman overpowered the gunman.

Question: How was he arrested?
Self-contained rewrite: How was Pratt arrested?