Who shot JR Ewing on Dallas in 2013?

In the 2013 revival of "Dallas," it is revealed that JR Ewing was shot by his own son, John Ross Ewing III. This revelation unfolds during the series, connecting to JR's complicated relationships and the ongoing family drama. The character's death serves as a pivotal moment, echoing the show's legacy and the enduring impact of JR's scheming nature.