Todd says he intended to give Andrews a copy of the demolition contract as evidence against Hostetler on the night Andrews was murdered.
The demolition contract, worth £1.2 million, was let in August 2011 to Dundee based demolition contractors Safedem.
The demolition contract for the station was won by London-based company Brown & Mason.
Bovis was awarded the $75 million demolition contract in 2005.
Despite the ongoing dispute over the design, additional demolition contracts were awarded for the site in April 1928.
Bids on a demolition contract are to be opened March 27.
It has already approved a separate $45 million demolition contract with the Gilbane Building Company.
He said that by continuing to seek demolition contracts, the authority was not showing good faith.
A last-minute attempt by a Philadelphia businessman to save the clock tower came too late, after the Rubin Organization let demolition contracts.
Then, days after the demolition contract was signed, the building would burn to the ground.