#OTD in 2013, two bombs detonated near the finish line of the Boston Marathon, killing three people and injuring over 500 more. The #FBI immediately responded, and in the days that followed, investigators processed more than 3,500 pieces of evidence and collected more than 33 https://t.co/F6Jw0qjTmW
This transaction on the Hedera public ledger proves this tweet's content existed and was unaltered as of the consensus timestamp above. Verify independently →