The boat that authorities say ran over and killed a teenage ballerina was found. Ella Adler was treading water while water skiing at a birthday party in Biscayne Bay when she was hit at high speed by a boat that did not stop to help her. The vessel was found docked outside a $4 million home inside a gated community in Coral Gables. An incident report obtained by Inside Edition identifies the boat's operator as Carlos Guillermo Alonso.