19 year old man wanted for murder

Please help us locate this man Matthew Q Benavente he is wanted for multiple crime
He is wanted for drug trafficking, Use of a deadly weapon, attempted murder, and murder.
He was last seen in big bend national park Texas he has brown eyes and black hair has a tattoo of my brothers keeper on his right arm and love life on his knuckles if anyone has any information on the where about of him please do not approach he is known to be dangerous
On January 2015 witnesses say they seen Mr. Benavente arguing with another individual witness then said he saw him punch the other man and took him down to the ground and then beat him witness said he saw blood flowing from out the other guys mouth and Mr.Benavente grabs his bat and smashed his face till he was unconscious the man was rushed to guam memorial hospital where he was pronounce dead