NYPD Commissioner Bill Bratton said that the murderer of two New York City police officers seemed to have “a very strong bias against police officers,” but declined to ascribe a motivation to the killings on Saturday.

“There were postings, apparently by the individual, we believe on Instagram…those Instagram postings were very anti-police, based on the briefing I had” he stated, although he cautioned that the investigation was still ongoing.

“Some of the postings, which I understand, that are out there, seem to indicate that he had a very strong bias against police officers” he added.

Follow Ian Hanchett on Twitter @IanHanchett