Hate to unfairly villainize the brother, especially when our only information is from what could be a poorly written news article. But, the details given seem awfully suspicious.
Here are the second, third and fourth hand details as reported to me by Facebook and my mom, so that them for what they are worth -
1. Went missing at 7:45 CST yesterday (prett much undisputed)
2. At first there was one guy that took her, then there were 2, now it seems to be one.
3. Her cell phone was found either in the woods or by the interstate about 15 miles or so north of her house (eh).
4. Her brother has indeed been questioned hard.
5. Half of the community and surrounding counties have searched the woods near her house over and over (hence why I don't believe the underbrush comment)
6. The boyfriend has been cleared (seems to be true)