Personal Injury Attorneys Serving the Greater Pasadena Area For more than thirty years, Thon Beck Vanni Callahan & Powell has been a premier personal injury and wrongful death firm in Los Angeles County, California. The firm’s longevity and success are the direct result of each Pasadena personal injury lawyer’s personal commitment to provide clients with the highest-quality, most vigorous legal representation while maintaining an unparalleled reputation for honesty, integrity, and accessibility. Thon Beck Vanni Callahan & Powell limits its practice to representing seriously injured clients and those who have lost a loved one as the result of negligence.