Six Gun Gorilla -

In the original pulp ending, O'Neil dies immediately after killing his nemesis, Tutt Strawhan. 2. Modern Reimagining (2013)

The character first appeared in as an anonymous serial in the British boys' paper Wizard Magazine , published by D.C. Thomson. Six Gun Gorilla

Six-Gun Gorilla by Si Spurrier – Parts 1-4 of 6 (spoilers) In the original pulp ending, O'Neil dies immediately