Why wasn’t the destroyed building left standing?
The building was destroyed so badly that it was structurally unsafe to where it had to be shored up and stabilized before rescue and recovery efforts could progress. It was also an extreme biohazard due to the nature and power of the explosion. The main reason is that three bodies were trapped under a main beam, and when efforts were made to recover these bodies, the building shifted and the operation ceased. The building was imploded on May 23, 1995 to recover these bodies, which completed the recovery effort.