Relatives and a physician say Roosevelt resident Jaime Chicas died Tuesday from severe head trauma and herniation.
A neurologist at Nassau University Medical Center says the lead weight from Chicas' fishing pole hit with "so much force that it kept going" and lodged in the back of his head.
Relatives say the 21-year-old was fishing with his brother-in-law and cousin at the west end of Jones Beach Friday when the accident happened.
Lead sinkers are commonly used by fishermen to sink lures more rapidly.