Presidential spokesperson Ernesto Abella stated that Duterte did not accept the offer of resignation .
Duterte believed that dela Rosa ca n't be faulted for the killing since the suspected perpetrators are not part of Duterte 's team .
Presidential spokesperson Ernesto Abella stated that Duterte did not accept the offer of resignation because he believed that dela Rosa ca n't be faulted for the killing since the suspected perpetrators are not part of his team .