Is the angle of the forks what's indicating to you all that they're bent? I've seen a lot of photos of bikes with similar angles - at least, not straight in line with the head tube.
That said, I'm a bit suspicious of that bike anyway. I suspect that it was damaged at some point and that someone fixed it up at home. The forks and part of the frame have been spray painted. (The forks, head tube, nearby bits of the rest of the frame were originally black.) The cap at the bottom of the head tube doesn't seem to be perfectly flat with the top with the forks (although doesn't feel loose, and it turns easily). That's not really visible in the photos but I noted it when I was checking out the bike.
But I'm curious if it's the angle of the forks compared to the head tube that indicated to you all that it had been bent in an accident. Or is there was something additional that I didn't notice?

What are the indications that the frame is bent? (What was in the two red circles by the head tube?) I checked it out just now to see if any of the tubes look bent. I couldn't see any bends. (I just checked them with taut string though.) I haven't taken the the stem and forks off the bike so I can't comment on whether the head tube is still cylindrical. So, like with the forks, I'm interested to know if there's something that I'm not noticing.