Border Patrol agent who died three months ago in what President Donald Trump said was an attack likely was killed by an accidental fall into a deep culvert, a newspaper reported, citing a federal agency memo. Customs and Border Protection to agency staff suggests agent Rogelio Martinez, 36, and another agent fell into the culvert on a moonless night on Nov. 18 near the town of Van Horn, Texas, said the El Paso Times, which said it obtained a copy of the memo.