On eBay, buyers often hunt for hard-to-find items. Ismael Almada was one of them. Except that he was searching for military-grade weapons and accessories — and they weren’t for fun or sport. Almada and his brother, Carlos, used over 50 PayPal accounts to avoid suspicion. Steathily, they made purchases of tactical gear like grenade launchers, gun parts, night-vision goggles, and bullet-proof vests. Ismael was also using his mother’s credit card to make many of the purchases, he would later admit to the DEA. Then, the brothers provided the gear to New Generation — a fearsome cartel operating in Jalisco, Mexico....