This is utterly untrue. Every day, tens of thousands of people meet up with folks they met on the internet, and most have no troubles at all. I have had great times with folks I met on the Internet.
We take much bigger risks every day. This is exactly the sort of childish, unscientific fear-mongering that a story like this is meant to generate.
Take proper, commonsense precautions, like meeting someone in a public place first, and have fun, kids.
You gotta admit that this guy had a bit of a Jeffrey Dahmer look to him, what with the saucer eyes, unkempt appearance, and expressionless glare. I guess another common-sense precaution would be to imagine your “date” as the picture atop an article about two kids being butchered and ask yourself whether he would look out of place.