Talk about flimsy evidence

I just watched my 2nd episode of season 3 (Miss Congeniality) and I have to say the evidence they found was all circumstantial and heresay. They found no murder weapon linked to the defendant, no DNA evidence, no witness who directly saw the crime take place. Without at least one of those things you're just grasping at straws. I guess they did have one phone call between the two suspects, but that could easily be cast into doubt with the simplest of explanations. If they indeed got the DA to sign off on taking this case to court, then I really question the validity and functionality of our justice system.

Do I think the guy did it? Yes, but no where near beyond a shadow of a doubt. You still must have solid evidence to support your claim. I would think the detectives would know what is sufficient evidence, but apparently not. I can only imagine how fast the charges were dropped once a defense attorney got a look at the evidence brought against his client.

So my question is, are the majority of the episodes going to be like this? Where they review the case, don't really find anything that isn't already known and then use their cameras to bully the Prosecutor into taking an extremely weak case? That is actually doing a tremendous disservice to these unfortunate families who have gone through such loss.