Dean Witter 's corporate headquarters were located in New York City 's 2 World Trade Center ( i.e. South Tower ) , where the firm had occupied over since 1985 . Dean Witter was one of many tenants whose offices were evacuated as a result of the 1993 World Trade Center bombing , which took place during the firm 's spinoff from Sears . Following , the firm 's merger with Morgan Stanley , the firm 's headquarters would be moved to 1585 Broadway on the edge of New York 's Time Square . Morgan Stanley Dean Witter would still have a large presence at the World Trade Center on September 11 , 2001
1993 World Trade Center bombing
1993 World Trade Center bombing
Dean Witter Reynolds