[Jason hadn't expected their conversation go in this direction but he has a suspicion for why Nico's asking after telling him of his experiences with death]

Willis Todd and yeah. He was in and out of my life until one of my city's biggest criminals killed him. He wasn't much of a dad in the first place anyway.

[It's a blunt and maybe cold answer but it's also the truth. Jason's feelings for his biological father aren't the most positive]