
Raul Madrigal stares and extends a defiant middle finger, apparently at feds hunting him.“He is kind of taunting us,” said Brian Ritchie, who leads the violent crimes and gangs task force for the FBI's Houston division, which has been trying to capture him for months. Authorities contend Madrigal, 29, is a key member of the fast-growing Tango Blast — the largest gang in the city — and that from 2007 to 2009, he helped the Gulf Cartel pump millions of dollars worth of marijuana and cocaine into Houston and the surrounding area.Fleeing to Mexico follows a Texas border crime tradition, but also speaks to what Washington sees as a growing threat...