The two answers so far are basically to "spend more time doing more complicated Google searches" and to "use PACER".
I do not believe that the person asking the question (Jossie Calderon) wants to just be told "Google more thoroughly". He didn't spend 100 points of his reputation just to be told the obvious (although I do think he should take BlueDogRanch's advice to at least some extent, as BlueDog's Google search already resulted in new and useful information that OP could have got himself).
The option of using PACER is really what the OP is probably looking for, based on the title of the question. However that costs money, and in a world where so much information is given for free, he might have been hoping for something that doesn't cost money.
So the third option is to physically go to the court yourself (which was also mentioned in BlueDogRanch's answer). You can ask the court clerks for the "action number" or for more information about the case. They will have their own computers from which you can find out when the next court hearing is. By going to the court hearing, you will usually learn quite a lot that you won't get in the news articles coming up in Google searches. If media is there, you will be able to talk to them and they'll almost always offer your business card, especially if you ask for it. You can try to follow up with them. I personally like to talk to the lawyers on each side of the case, and there is plenty of chance for that when the court goes into recess. Some lawyers will not want to talk to you, but many of them will at least chat a bit, and almost all of them will at least be respectful. I often get the business card of the lawyers involved in the case, and they are more than happy to give this away (perhaps because spreading their card around can help their firm to get clients). If you build a good rapport with the lawyers (I suppose you can also do this with the families) you may have access to a lot of information that you otherwise would not be able to get.
So I am sorry that access to this information is not made easy. I believe it can be, and should be, but the legal world has made their choice that the only way to find out certain things is to go to the court room yourself, or to ask someone else to do it for you, or to pay some money. I hope this helps!