"There were three or four police cars in the parking lot [at the gun show]. None of them could have stopped him [Samaha] with the firepower he bought," said Nunziato.
For Samaha, it's all about honoring his sister Reema's memory and working to prevent another tragedy from happening again.
"I think I'm doing something she would do," he said. "I think she would be proud of me and tell me to keep going."
HOW TO HELP:
Angel Fund: The Angel Fund web site honors the memory of Reema Samaha and explores those issues that contributed to the tragedy at Virginia Tech on April 16, 2007.
Students for Gun Free Schools: Omar launched an online campaign about the dangers of guns on campus.