With these two incidents being one of the reason Anastasia was loyal to Costello which kept Genovese at bay for at least part of the time after he returned from italy
Another reason for Anastasia's loyalty to Costello was because Frank sponsored him to be the new don of the Mangano (now Gambino) family. After Albert whacked the Mangano brothers, he was vulnerable to be whacked himself. Frank supported Albert's alibi that he was the one being hunted and "if" he killed them, it would have been in self defense. It was because of Frank's power and influence that Albert was promoted to family boss.
Little Man, great to see some Frank Bals talk here; the guy was no fucking good & O'Dwyer almost certainly had to know it..
Yes, O'Dwyer definitely knew it. As you probably know, O'Dwyer's career was basically bankrolled by the mob, and he was dumb like a fox.