Wife cheated and we are going through divorce. Should I try to get the other man fire

Hello everyone, I'd like to get some help with an issue I am having. My wife was has been cheating on me for the past 15 months. I found out 4 months ago and I tried to win back her heart. Unfortunately, she was too deep in love and we couldn't make it work. We decided that it's best to get a divorce so she can be happy and free. It makes me upset to know what the man she was cheating with is a USPS driver. I do know that he used to have sex with her during work hours while I was at work. I have been told in the past by neighbors that his truck has been parked in front of our house for sometimes up to 20 minutes. I have also been told that he would sometimes park near the mailboxes and then walk to our home (which takes less than 2 minute). Since we are separated, I have been trying to get closure through all of this. I have been asking her all of the details because I don't want to fall for this again. Although it hurts, I know it will make me stronger. She told me this past weekend that sometimes, she would ride along in the back of his truck. She said that she like the rush of almost getting caught and that she would sometimes give him quickies in the back of his truck between stops. She also said that she gave him oral sex up in front at least 3 times. I don't know how that's possible since I'm sure he only has one door up front. The reason why I'm here is that I would like to know if I should keep moving on or should I try to get this guy fired. My wife is so much in love that she can't see him sleeping with anyone else. I told her for all she knew, he could have other women on his route that he is sleeping with. I can't expect my wife to be in on this since she loves him. It's been months since the neighbors say his truck was at the house but I may be able to get one of them to tell the story to his job. Even then, it would just be my word against his. I would just be some heartbroken delusional husband and he would just be someone who is supposedly doing his "job". Should I go through with it or let it go?

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