Funeral arrangements were pending Monday for 58-year-old Ramon Alonzo and his grandson, Elisha T. Alonzo, both from Crystal City. Ramon Alonzo was the lawmaker's older brother.
Rep. Alonzo said the accident happened Saturday afternoon during a fishing trip to the Crystal City area.
Police early Monday referred inquiries to the Dimmit County sheriff's department, which did not immediately return a call to The Associated Press.
Autopsies have been ordered.
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