Not My Father is a bronze trophy which can be achieved in Beyond: Two Souls. It requires the player to choke Philip with Aiden. It can be achieved in the chapter Alone, when Jodie's foster parents leave her with Nathan and Cole indefinitely.
After Philip and Susan exchange their goodbyes, Philip will leave the room — his 'aura' is now red instead of blue, indicating the possibility of killing him. The player must then, as Aiden, strangle Philip.