David Perecman, right, attorney for Vanessa Fontaine, mother of missing autistic teen Avonte Oquendo, speaks at the Rev. Al Sharpton's National Action Network headquarters, in New York, Saturday, Jan. 18, 2014. Police were investigating whether human remains found along the shore of New York City's East River could be those of an autistic teen who walked out of his school and vanished more than three months ago, a law enforcement official said Friday. Sharpton is at left.(AP Photo/Richard Drew)