A mental competency exam has been ordered for the third and final teen accused of setting fire to 15-year-old Michael Brewer in 2009.

Matthew Bent, 17, was supposed to go on trial Monday, but that has been delayed pending the outcome of the exam.

Bent chose to go to trial instead of pleading no contest, as co-defendants Jesus Mendez and Denver Jarvis did.

Bent's attorneys asked that he be tried as a juvenile. That motion was denied.

Prosecutors requested that Bent undergo a competency hearing because, while they believe he is competent, they want to make sure the defense cannot bring up the issue on an appeal, if he is convicted.

The Brewer family left court frustrated Monday.

"He practically arranged everything. I'm sorry, but for me, this is like a last-ditch effort to get some attention," said Brewer's grandmother, Rennie Brewer.

Police said the three teens were having a dispute with Michael Brewer when they poured rubbing alcohol on him and set him on fire outside a Deerfield Beach apartment.

Brewer suffered burns over 60 percent of his body, but he has since made an amazing recovery. He now attends school in Palm Beach County.