It would be interesting to see how often "teen" vs. "man" is used for 18-19 year olds depending on the circumstance. i.e. would "man" be used more often when describing somebody who robs a convenience store; would "teen" be used more often to describe the employee who was working behind the counter when the crime was perpetrated?
Regardless, on this particular issue, I'm sure Krawlie is correct and RM incorrect. Would still be interesting to find out if there is any difference in the general usage of words, tho.
Using the term of "teen" on Brown is correct, so I agree with you and Krawlie.
However, I think it can be argued that even if he is legally a man, a young man who is 18 or 19 is still considered by maybe anyone over 21, but certainly over 30, a "kid." Just because someone crosses the magical age of 18 doesn't mean they automatically think or act as an adult. In fact in this day and age, at least in developed countries, "kids" that are of the age of 18-19 have been largely infantalized by society. In the US in particular, some states don't allow "kids" to own guns until 21, or drink alcohol. So, the age of 18-21, particularly 18-19, is still somewhat of a limbo state. So, I think the Press is simply reflecting that sentiment. That is the optimistic view, anyway.
The pessimistic view, of course, is that the Press is basically calling Brown a teen because he is a teen of color, shot by a white cop, and is at least initially described as a victim since he was unarmed, and this makes (and sells) the headlines. It later came out the cop had his eye socket broken by this 6'4" 300 LB "gentle giant," and the shooting may have an argument for being justified, after all. So, I think it is a legitimate question to ask, had Brown not been killed and simply arrested for strong arm robbery, would he have been described as a "man" or a "teen," then? Probably as a man, I am guessing. Or, even more pessimistically, what if the cop was a minority or a woman? Would the shooting have have been deemed justified, then? And if so, would Brown still have been described as a teen? I don't know the answer to that, but it is a relevant question to ask.