Special to the Advance BROWNSVILLE — A 36-year-old Brownsville resident has pleaded guilty to possession with intent to distribute 1,741 grams of fentanyl, announced U.S. Attorney Alamdar Hamdani.Heriverto Ramirez packaged 494 grams of fentanyl for distribution to a trailer park in Houston using the U.S. Postal Service (USPS), concealing the dangerous narcotic in the shell of a tankless hot water heater.Law enforcement executed a search warrant at the residence of Ramirez and discovered an additional 1,247 grams of fentanyl and 8.48 kilograms of cocaine.During the yearlong investigation, authorities learned Ramirez coordinated cocaine distribution from his home while also distributing cocaine ...