Muldoon tranquilized the T-rex in Jurassic Park .
While Muldoon successfully tranquilizes the T. Rex , the park 's upper management�� engineer and park supervisor John Arnold , biotechnologist Henry Wu , Muldoon , and Hammond�� struggle to return power to the park , while the veterinarian , Dr. Harding , takes care of Malcolm .
Jurassic Park -LRB-novel-RRB-