Ok we have a depressent and a stimulant right? They suddenly think of an idea. Hey beer is popular and so is energy drinks lets try mix these" So they made (achoholic redbull) other energy drinks soon followed. I mean honestly the creator was a moron as he did not get the diffrence between a stimulant and a depressent. That is just asking to get tossed in court. I mean do they not need this to be aproved by someone first? This is more risky than any achoholic beverage and worse than any energy drink. You body will be giving your heart signs to go up than at the same go down which will lead to a heart attack since the chemicals do not mix. Thats like not drinking milk and lemonjuice. That is basic rules of science. Than Everyone is shocked all those kid started to die.

Also, I have a friend who uses cocaine when he starts feeling too drunk because it brings him up to a level where he can drink again. He feels rotten the next day, though. Really, really rotten. Not recommended.
That is the iccident that got them banned. I was in school when this happened.
Actually, no. That's not how that works. I don't blame you for thinking this, because I know there are news articles that say almost exactly that, but the news media is really, really bad at reporting about science sometimes, so I'll break down the problems with this idea for you.
1) Alcohol doesn't lower heart rate.
That's right. Alcohol does not slow your heart rate down. Actually, alcohol can cause your heart rate to INCREASE. See http://www.livestrong.com/article/160756-heart-rate-increase-alcohol-consumption/ and http://www.madsci.org/posts/archives/apr2001/986422881.Gb.r.html
2) If alcohol DID lower heart rate, that wouldn't necessarily make drinking it with caffeine a bad idea.
Using a medication or substance that lowers your heart rate does NOT mean you can't use a medication that raises your heart rate. Obviously, you should consult your doctor about combining any sort of substances, but your idea of the heart getting "confused" because it's being told to speed up and slow down at the same time just isn't how the human body works.
3) As far as I can tell (and correct me if you know of studies that contradict this) there's no scientific reason to believe that alcohol combined with caffeine causes heart attacks.
Yes, I know there were news stories. News stories are not scientific studies. As far as I can tell, this concept came from a single case of unexplained heart attack in a young person who was drinking Four Loko, an alcoholic energy drink. That isn't science, it's conjecture. It's not included in the FDA's warnings about combining caffeine with alcohol, or in the CDC's page about it (see http://www.cdc.gov/alcohol/fact-sheets/cab.htm )
There are dangers in drinking alcohol with caffeine. For instance, caffeine can make you feel less drunk, which means that you may overestimate your ability to drive. These aren't obvious interactions that anybody could foresee if they just thought about it, though. The human body is complicated, and these things just aren't that obvious. It would be nice if these things were all just common sense, but they aren't.
This is irresponsible, alarmist reporting. You're not the first person to be taken in by it, nor will you be the last. There hasn't been a big slew of deaths due to alcohol and caffeine. Yes, there have been deaths (but not many), but people die of alcohol poisoning from all kinds of alcoholic drinks. Also, it looks like several of the people who died had a history of seizures. I'm not saying that mixing lots of caffeine with alcohol is a good idea. Like I mentioned before, it can lead to people thinking they're more sober than they are and either drinking more (which puts them at risk for alcohol poisoning) or driving. As far as I can tell, no deaths have been conclusively linked to the combination of caffeine and alcohol, it's just conjecture.
The main issue I took with your post (which is also a problem I have with a lot of news reports about things like this) is the idea that it should be obvious that you shouldn't combine caffeine and alcohol. Well, no. This isn't basic science. It's extremely complicated. You can't tell what you substances you can and can't mix through common sense, which is one of the reasons that testing products and medications is so important. Even if it turns out that combining alcohol and caffeine can cause heart attacks, that's not an obvious conclusion. After all, you can take other (and stronger) stimulants and drink (I know this because I've been on stimulants for ADHD for most of my life, and I had a lengthy discussion with my doctor about it when I turned 21). If I eat grapefruit for breakfast, though, my medication won't work. GO FIGURE.
EDIT: I wanted to add that I'm not trying to accuse you of arrogance. The "Duh, anybody with half a brain would know that!" reaction is really common reaction to discoveries that are totally new and should be surprising (or even things that are downright false). It's called hindsight bias, and it's a human brain thing. When people learn something new, they're very likely to believe they could have predicted it, even when they couldn't have. It lends itself really well to alarmist reporting, though, especially about health issues, because it makes people think "I could've predicted that, and I'm not even a doctor! The people in charge must be really irresponsible!"
They'll take things off the market in response to things like this, by the way, without scientific proof that they're harmful. It's a precaution. It doesn't actually constitute scientific evidence that those things are deadly.
Forensic scientists aren't police officers, by the way. If you'd been talking to scientists, you would've said "scientists", not "cops". I'm done here.