Richard Heard?

I was in an Apostolic Church back in the late 80's while a powerful speaker spoke, the title was 'prayer really changes things.' Is name was Richard Heard from the United Pentecostal Church.
I recently tried looking him up on the net to buy some tapes from him. The only Richard Heard I found is Richard Heard a pastor from Christian Tabernacle in Houston TX.
I hope this is not the Richard Heard I heard speak that night. Does anyone know about the Richard Heard from the UPC and the Richard Heard from Christian Tabernacle in Houston TX? All information on both will be appreciated, but I'm looking for the Richard Heard from the UPC. Thanks to you all.