Burnet tornado evokes mysterious, sad photo

A Frayed Knot The colorless photograph may look a tad grainy, but still sharp as it can be, perhaps typical for black-andwhite newspaper images of its day. Austin American-Statesman photographer Tom Lankes snapped the shot while on assignment in Burnet the day after a tornado tore through the town March 10, 1973. In the background of the picture, there is a big heap of gnarled brush and…