Even for Philippine President Rodrigo Duterte, the sight of an off-duty policeman killing in cold blood a mother and a son she was desperately trying to protect was too brutal.<br /><br />"I don't think that you can escape the rigours of justice because it was caught on TV. Even I am dumbfounded. That's unfair and too brutal," Duterte said during his televised Cabinet meeting on Monday night (Dec 21).<br /><br />The incident on Dec 20 saw sergeant Jonel Nuezca shooting at close range Sonya Gregorio and her son Anthony Gregorio during a heated exchange over a land boundary dispute in Paniqui municipality in Tarla province.<br /><br />The incident was caught on camera.<br /><br />WATCH MORE: https://thestartv.com/c/news<br />SUBSCRIBE: https://cutt.ly/TheStar<br />LIKE: https://fb.com/TheStarOnline