article_snippet.sent: killing] is as grim as the incident itself. '
article_snippet.sent: The 15-year-old was severely wounded after being hit on the head by a tear-gas canister fired by a police officer during anti-government protests in Istanbul in June 2013.
article_snippet.sent: After spending 269 days in a coma, Elvan eventually died on March 11 last year.
highlights_snippet.sent: Both him and him captors were killed during the subsequent rescue effort .
  