Harker had officially sent a letter to Yakov Perelman, which he expected would probably reply within two weeks. If the guy would reply at all, that is.
It was hard getting information about him on his own. He did some digging in the library and found some articles about him and the BITMAC Institute. Apparently, he was a well-known physicist and astronomer that was included in some research involving light waves and optics.
But besides that, he can barely find anything. You'd expect more info for a high-profile scientist like this. But it seemed that after his early retirement at the age of 45, Yakov Perelman became even more discreet and only sponsored some research now while living in seclusion somewhere in LA. He doesn't take any interviews and barely appears to the public.