William Shatner Mourns Death of Costar Justin Mentell

William Shatner and Justin Mentell

Ron Wolfson /Landov, Jesse Grant/WireImage

updated 02/02/2010 AT 6:00 PM ET

originally published 02/02/2010 AT 6:20 PM ET

William Shatner paid tribute Tuesday to Boston Legal costar Justin Mentell, who was killed in an car accident in rural Wisconsin.

“I’m deeply saddened to hear about Justin Mentell,” Shatner wrote on Twitter. “There’s no telling how far up the ladder he may have climbed. My sympathies to his family.”

Mentell, 27, who played attorney Garrett Wells on the ABC show from 2005 to 2006, was found dead Monday near his crashed Jeep, the Associated Press reports.

His car had gone down a steep embankment near Blanchardville, Wis., and hit two trees.


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