Frank Chiola

Frank Chiola testified for the prosecution on Day 28 about responding to the Marathon explosions as a Boston police officer. Stationed at Boylston and Exeter, he heard the first explosion and ran toward it, hearing a second blast shortly afterward. He described smoke clearing to reveal injured people, removing barriers with others, applying tourniquets, and helping people reach ambulances.

Chiola estimated that he performed chest compressions for 20 to 30 seconds on a woman whose name he later learned was Krystle. He described severe injuries and apparent pain, while expressing difficulty describing her condition. He said she was dead when he later saw her at the first aid tent, where he remained until about midnight.

During Nadine Pellegrini's examination, Exhibit 5 was played and Exhibit 8, already in evidence, was displayed to help Chiola identify his position and movements. He explained how his radio placement and tag book helped him recognize himself in the photograph, but qualified his estimate of the second explosion's distance and said he did not know the explosion type. The court sustained objections to further military-duty questioning and to asking where the scene had taken him back. The defense asked no cross-examination questions.