A friend of mine was once arrested and it made national news - multiple times (arrest, randomly later on, then trial, etc). What I observed:
1. They often got a lot of details wrong - details very relevant to how the public would perceive him. Easily verifiable details, BTW. A lot of it was just someone on the law enforcement/justice side making statements that they did not bother to verify.
1a. Some of these false facts are now part of his Wikipedia page, with several references to these news outlets. Be wary of facts on Wikipedia if the source is journalism.
2. The national news have a hive mind mentality. Between the arrest and the trial, he would suddenly become headline news, and often with no event triggering it. As if they all suddenly decided (on the same day) to just write a story about him. The reality is more likely laziness - one outlet decided to make it big news and others didn't want to be left behind.
2a. As an aside, another well known freelance journalist said this is common. He once had the scoop on a big story and was trying to sell it to the top news outlets. The most common question was "Is anyone else running this?" followed by "We don't want to be the only ones to run this." The concern was about being wrong in the end, but the facts were easily verifiable and the news outlet didn't want to go through the trouble.
2b. The random big news about my friend with no trigger? A number of times the same news outlet had reported the very same thing at the time of arrest months prior. It was basically recycled news, but presented as if it was breaking news.
3. The local newspapers were the best. They didn't report false facts - they verified them. They had the most detail (continual coverage over months rather than random sensational headlines).
That was 20 years ago. Something similar happened to another friend of mine recently. Half of the latest news reports about him have ridiculously wrong facts (year of arrest, time spent in prison, etc). Stuff that is trivially verifiable. His case was not as high profile. Lesson learned: News stories that are not as big are a lot more likely to have wrong information.
This experience (particularly the false facts) is why I'm adamant about suspending judgment prior to the trial. My sources (news) are unreliable.
(BTW, that first person was easily acquitted - the defense called only one witness, because the prosecution's case was so flawed).