BLOOMINGTON, IN (WIBQ)  --  The search for missing IU coed Lauren Spierer is getting bigger. Some celebrities are using Twitter to try to locate the 20 year old, and yesterday Colts’ owner Robert Irsay announced he was putting up ten thousand dollars for what he calls “serious” information that brings a solution to the case.  Lauren Spierer was last seen last Friday morning around 4:30 a.m.