Short answers, pulled from the story.
David Emanuel Twiggs was a U.S. Army general who commanded the Department of Texas when the Civil War began. He was dismissed on the 1st of March 1861, for surrendering his entire command, including 20 military installations and $1.3 million in federal property, to Confederate forces in Texas without a fight. The Army charged him with "treachery to the flag of his country."
Twiggs surrendered 20 federal military installations, including the U.S. Arsenal at the Alamo, along with 44 cannons, 400 pistols, 1,900 muskets, 500 wagons, and 950 horses. The total value of the surrendered property was $1.3 million.
Twiggs earned the nickname "Bengal Tiger" during his service in the Seminole Wars in Florida. It was drawn from his reputation for a fierce temper and an aggressive offensive style of fighting.
Twiggs accepted a commission as a major general in the Confederate States Army on the 22nd of May 1861, and was assigned to command the Confederate Department of Louisiana. He resigned before assuming any active duty because he was past 70 and in poor health; he formally retired on the 11th of October 1861.
Twiggs was born on the 14th of February 1790, at Good Hope plantation in Richmond County, Georgia. He died of pneumonia on the 15th of July 1862, in Augusta, Georgia, and was buried at the same plantation where he was born.
Twiggs led a brigade at Palo Alto and Resaca de la Palma, was promoted to brigadier general in 1846, and then commanded the 2nd Division of Regulars under Winfield Scott. He fought in every engagement from Veracruz through Mexico City, was wounded at Chapultepec, and served as military governor of Veracruz after the city fell. Congress awarded him a ceremonial sword on the 2nd of March 1849.