Dunbar had been arrested for participating in a fight outside of a South Beach-area nightclub. The initial reports indicated Dunbar would be charged with a felony for battery, but he ultimately was charged with misdemeanor disorderly conduct.
In the time since, Dunbar and Fisher declined comment until the situation played out, but they also indicated that it wasn't what it seemed.
They received word Wednesday that the charges wouldn't be pursued.
"I did allude early on that it didn't appear to be what it was portrayed to be," Fisher said. "Because we had good information. We're happy that the things are put behind him."
The fight began outside Dream nightclub in Miami in the early hours of Sunday morning before the Rams were to report to training camp. According to reports, Dunbar was defending himself against NBA free agent Donte Greene and his brother Dmetrique Greene. Police had to restrain Donte Greene with a taser after he struck Dunbar from behind.
Dunbar didn't offer much after the incident but said Thursday he wasn't concerned with the outcome because he believed he was simply defending himself.
"I knew the truth," Dunbar said. "I knew what happened. I spoke to the organization about it. It was just letting the legal process handle itself and hopefully it would turn out the way I wanted. It didn't stress me out at all. I just came out and played football and tried to get better."
Dunbar hasn't missed any time during the Rams' training camp, filling in for James Laurinaitis at middle linebacker while he recovers from a sprained ankle. When Laurinaitis returns, Dunbar is expected to move back to his normal spot on the outside opposite Alec Ogletree.
While Dunbar is in the clear, he and Fisher both made it a point to say that he can make better choices in the future.
Dunbar missed the first four games of the 2013 season after a suspension from the league for a violation of the league's policy on performance-enhancing drugs.
"The players have to be mindful of them not putting themselves in those potential situations," Fisher said. "Even though the charges were dropped, I'd like to see him make better decisions and not be in those types of situations at that time of the evening."
Dunbar said that's something he and Fisher discussed after getting news that the charges were dropped.
"That's something Jeff and I talked about it," Dunbar said. "He was mainly upset about the fact that I was still out that late. You can always use better judgment. That's something I've learned. I'm just happy it's over and that it ended the way it did."