If you see a pack of senior citizens whooping it up in Sacramento tonight, you best step aside. They might just be a group of former Tower Records employees in town to party about the past. Hundreds of former Tower Records employees have descended on the home of the defunct record store chain for an employee reunion timed with the theatrical release of “All Things Must Pass,” the Colin Hanks documentary about the life and death of the chain. “I think it’s great that we are still a family,” said Theresa Allen, 69. She started at the company at age...