Write an article based on this "Identify the good news. Present the facts. Outline the positive results. Avoid excuses. Avoid finger-pointing."
Before the negative event, what was going well? Find something that was on the upswing that is related to the bad news. It's important to present this first. Do not ever present the bad news first. If you do that, the audience will often focus on that and you will lose their attention they won't even hear the good news. Give them something interesting so they'll want to hear more. After the initial good news, lead directly into the bad news. Don't segue with "and now the bad news" or you'll deflate the positive impact the previous good news brought. When you state the bad news try to be somewhat monotonic in nature but don't waiver and don't be apologetic. You've stated exactly what happened. Now, most importantly, what did you learn from it? Bad things do happen; accept it. But you can use those events to improve. This is most commonly called a post-mortem analysis. Done properly, such an analysis can lead to dramatic improvements. When you present your summary of the post-mortem, you will be telling the audience how this negative event poses a future benefit. Yes, it happened. No, it wasn't a good thing. No, you're not trying to dodge responsibility. Your objective is to state the news and nothing but the news. You're simply going to put it in such a way that the audience recognizes you as a person of integrity. When done properly it's likely you'll get a round of applause by using this method. Instead of a blame fixer, be a problem fixer. Don't try to assign the bad news to someone - not even to yourself. Quibbling over who did what to whom behind which barn isn't going to solve anything. We were having a good day, something bad happened, here's what we're doing about it.