Dawnie_Dawnie's feed

Did he target her?? Like we see he hates her for growing up wealthy and he plans to kill her after all of this so?? Why her specifically?? Was it just coincidence? Like he had this planned but when he met her it was just like “Oh yeah might as well kill that depressed married lady who grew up rich “?? Why not kill her immediately? Does he wanna give her a glimpse of happiness for once in her life then rip it away and kill her?