Answer:
Yes.
Step-by-step explanation:
Yes, Rubin is responsible for his own death because he was killed with the axe that he holds in his hand. The grandpa and the Pritchard parents are also somewhat responsible because they did not place the axe away from the Rubin. if the axe is placed away from the Rubin then this incident will not be occur and Rubin is now alive so both the Rubin and grandpa and Pritchard parents are responsible for the incident.