← All EvidenceDirectDirect Examination - Edward S. Knapp Edward S. Knapp Aloke Chakravarty
Physical Evidence
Smaller Fagor pressure-cooker remains from Watertown
Knapp identified the Watertown device's vessel as a Fagor pressure cooker smaller than those used on Boylston Street. He also described wire, a 9-volt battery, and a toggle switch found at the scene.