Facing overwhelming evidence against him and a possible death penalty, Esteban Santiago's legal team has only two realistic options, experts say: Try to make a swift plea agreement or pursue an insanity defense. Neither of those choices is a sure thing,.... Santiago, 26, is accused of fatally shooting five people and injuring six others last week at the international airport in Fort Lauderdale. -snip- "But you're not defending against guilt in these types of cases, you're defending against the punishment. ... -snip- Federal prosecutors rarely seek a death sentence and even more rarely persuade jurors that execution is appropriate. The...