NEW YORK (AP) — One of three people killed in an earthshaking gas explosion that flattened two New York City buildings was a security officer at a Manhattan college. Hunter College president Jennifer Raab says Griselde Camacho was among the victims in the Wednesday morning blast. Raab says in a statement on the college's website Camacho had worked there since 2008. A gas leak is being blamed for the explosion, which injured more than 60 people.Read more on NewsOK.com