NPR News

Salesmen are rarely heroic figures in American culture. They're often shown as slick, unscrupulous charlatans like Ricky Roma in David Mamet's play Glengarry Glen Ross. And then there are sad, defeated characters like Willy Loman in Death Of A Salesman, who shortly before taking his life says, "After all the highways, and the trains, and the appointments, and the years, you end up worth more dead than alive."

Yet sales drive the economy. The cleverest invention or product will disappear — creating no income, no employment — unless someone can sell it.

The past few years in Texas have seen a parade of DNA exonerations: more than 40 men so far. The first exonerations were big news, but the type has grown smaller as Texans have watched a dismaying march of exonerees, their wasted years haunting the public conscience.

Yet a case in Williamson County, just north of Austin, is raising the ante. Michael Morton had been sentenced to life in prison for murdering his wife. He was released six months ago — 25 years after being convicted — when DNA testing proved he was not the killer.