Conservative white male here and I think Simpson probably did it, but I was far less persuaded of that at the time. I felt that there was just too much that didn’t add up if he did it and at the same time too much that didn’t add up if he was innocent.
On the guilty side we have the Bronco chase, Simpson’s under-his-breath statement to Nicole at the funeral about how it was all her fault, and then the wan grimace/smile he made when the verdict was read, as though he was pleased not to have to spend the rest of his life in prison but also knowing he guilty and deserve the acquittal. And then there was the revelation of his explosive temper - which most people had no idea of at the time - and the missing bag that Simpson turned over to Al Cowlings (or whoever it was), and the fact that Howard Weitzman bailed immediately after meeting with Simpson the next day.
On the innocent side, IMO there was far too little blood inside the Bronco for it to have been driven by someone who had just mutilated the hell out of two people, one of whom was young, fit and by all accounts fought strenuously for his life. IIRC from photos leaked at the time, there was just a little blood on the ceiling behind the driver’s seat and a little blood on the upper back of both seats. The stains looked like fairly faint smears made by the fingertips of someone feeling around the car’s interior in the dark. I thought that the blood looked more like something left behind by detectives feeling around in the car in the middle of the night while still wearing rubber or vinyl gloves that had picked up a little blood at the murder scene. And then there was the was the fact that Simpson was seen entering his house from the front drive, supposedly dripping blood and being spotted by his limo driver at the same time that he was allegedly jumping over the back fence, dropping one of the gloves and banging into Kato Kaelin’s air conditioner. Also, blood was showing up on Nicole Simpson’s gate and the interior of the Bronco weeks after the murders.
(And, as a sidebar consideration which I never heard brought up at all, whenever I’ve seen footage of Simpson walking, the toes of his shoes appear to point straight ahead - a quality that I would expect to find in most athletes who have to run as part of their sport, as toes pointing out would cause some lateral movement with each step, thus slowing them down and making them less competitive. But images I’ve seen of the murder site showed bloody footsteps exiting the scene in which the toes point outward somewhat. My father, who I’d mentioned this to, suggested that I call the 1-800 number that Shapiro had set up and mention this apparent discrepancy, but I never got around to it, figuring that surely Cochran, et al. would have caught it if that had really been the case. Still, I find myself wondering sometimes what might have been the result had I made that call. :p)
And there were other aspects of the case that left me unconvinced one way or the other too, and also that at the very least a few actors in the police department and perhaps even the D.A.'s office tried to fabricate evidence in order to try to make sure that this time a celebrity wouldn’t be able to get away with murder.
So, all in all I have to confess that had I been on the Simpson jury at the time I would have voted not guilty too.
ETA: I didn’t vote because I’m still not absolutely convinced one way or the other, although like I said above I do think he probably did it.