← All EvidenceDirectBrian J. Corcoran, Jr. — Direct (continued) Brian J. Corcoran, Jr. William D. Weinreb
Physical Evidence
Pressure-cooker pieces collected from Boylston Street
Corcoran identified the same pressure-cooker brand and type at Boylston Street and Watertown, distinguished their fragmentation, and said he believed their sizes differed. His testimony did not establish who constructed either device.