Definition: Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].
Input: Rogelio Martinez  died while patrolling in the Big Bend Sector of the border in Texas. The agent and  his  partner were responding to activity near a freeway in the Van Horn Station area when they were attacked.  Martinez ’s partner  Stephen Garland  survived.
The manner of  Martinez ’s death is still “undetermined.”
 Martinez ’s fiancée  Angie Ochoa  said she believes the autopsy report is cover-up.
Ochoa said the FBI is focusing on the medication in  Martinez ’s body instead of finding the person who killed  him .

U.S. Border Patrol agent died of head injuries autopsy says