Maybe you've heard about this story - there's a British boxer named Curtis Woodhouse, who lost his English light-welterweight title last week.
After the fight, Woodhouse heard from a "Twitter troll" who had been harassing and criticizing him for months.
Under the user name @Jimmyob88, the person called Woodhouse a "disgrace" and tweeted things like...
"just retire let's face it your (sic) not good".
"haha u lost u silly mug - fight a 10 year old next time".
"u put so much effort in sacrificed all that time to and failed to defend your mickey mouse title".
Well, Woodhouse had enough and offered $1500 to any of his followers who could give him the "troll's" address.
He got it within minutes and drove about 100km to find @Jimmyob88.
Woodhouse tweeted a photo of the guy's street, saying "right Jimbob im here !!!!! someone tell me what number he lives at, or do I have to knock on every door #itsshowtime."
Turns out, the "troll" was a guy named James O'Brien.
Today, for the first time, he came face to face with Woodhouse on the ITV show 'Daybreak' and O'Brien apologized for what he did.
Here's the video from ITV.
"I honestly don't know (why I did it)," O'Brien told Daybreak.
"I was silly and childish. Looking back on it, I realize I had done the wrong thing. I can only offer my deepest apologies to anyone I have abused on Twitter. I've let everyone down - friends, family - and I do really feel embarrassed."
"I've learnt my mistakes and nothing like this will ever happen again."
Woodhouse accepted O'Brien's apology and they shook hands.
"It takes a big man sometimes to say sorry and I've done plenty of daft things in my time, so your apology is accepted - it's not a problem," he said.
Woodhouse also explained why he went so far to try to find O'Brien.
"If you are in the public eye, I don't think it's right that you should be abused, your family should be abused, your children should be abused, I don't think anyone has got the right to do that.
"I was sat on the sofa with the wife on Monday and the thing is she sometimes uses my account as well and she's seen this abuse and it worries and scares her.
"We don't know who this guy is and some of his threats, I don't know if he's being serious or not. I could see that she was worried and I thought enough is enough, I am going to put a stop to this right now."