Defendant now lives a Spartan existence By Kristen GreenUNION-TRIBUNE STAFF WRITERAugust 5, 2002Until six months ago, David Westerfield hosted barbecues by his pool, fixed dinner in his remodeled kitchen and relaxed on white leather sofas in his four-bedroom house. He ran a business from home, logging onto one of several computers. He took his plush motor home on trips to the desert, where his children and friends played on his numerous sand toys.Today, his Sabre Springs home is on the market for $480,000 and his Toyota 4Runner, motor home and computers are in police custody. No matter what the verdict...