Convince Dawkins is a bronze trophy which can be achieved in Beyond: Two Souls. It requires the player to help Dawkins see the truth. It can be achieved in the chapter Black Sun, when, whilst venturing into the Black Sun, Jodie will come across Nathan Dawkins near the rift, searching for his wife and daughter.
Approach him, and when given the option to speak with him, select Reason both times. This will show him the truth of his ways and free him of his past, getting you the trophy in the process.
Note: Some players have reported that selecting both Move options instead will also work.