Man who allegedly sent white substance to lawmakers put his address on envelopes: DOJ

What happened: Matthew Unglesbee was charged with sending letters containing a white granular substance, which turned out to be salt, to four members of Congress in the Northern District of Illinois, per a criminal complaint unsealed Monday in Springfield, Illinois. Why it matters: The complaint says investigators found Unglesbee's return address on the letters, and he allegedly told agents he was joking but recognized recipients could see the letters as a threat.

Matthew Unglesbee was charged with sending letters containing a white granular substance, which turned out to be salt, to four members of Congress in the Northern District of Illinois, per a criminal complaint unsealed Monday in Springfield, Illinois.

The complaint says investigators found Unglesbee's return address on the letters, and he allegedly told agents he was joking but recognized recipients could see the letters as a threat.