Jacques "Clay Pigeon" Quartz was a gangster in the 1920's. He took up residence in this building to handle his pigeon betting operation. Unfortunately, he liked to shoot pigeons and commonly depleted his flock by 50% or more at a time. Business wasn't really that good for him and, in fact, it was later revealed that the pigeons were betting against Jacques. The pigeons won most of the time.
(Non of the above is true; as far as I know.)
Commercial Exchange Building, Los Angeles, California 2012