Residents of the six homes in Lawrence, about 30 miles (48 km) north
of Boston, and neighboring Methuen were allowed to return after
about three hours once investigators determined there was no threat,
said John McInnis, deputy fire chief in Lawrence.
Authorities learned about the firearms and suspicious materials from
the deceased man's mother. She called police after finding them
while cleaning out his apartment, McInnis said.
He said that investigators were testing chemicals found in the scene
to determine their composition. The three-story apartment building
where the materials were found is on the border between Methuen and
Officials with the Lawrence Police Department and Massachusetts
State Police declined comment on the status of the investigation.
(Reporting by Jim Finkle; Editing by Ian Simpson and Eric Walsh)
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