Victor Castaneda Jr. disappeared while swimming with his sister. "My heart is completely and irreparably shattered," she wrote on Facebook.

Officials in the state of Florida have launched an investigation after a severed human head was discovered at a Miami beach last week. The severed head had washed ashore on a Key Biscayne beach, which is just south of Miami,

This is shocking, shocking. You don’t hear a lot about that. You heard about drugs washing up on shore and things like that, but a head!” Miami resident Marcelo Borrelli said.