Jussie Smollett found guilty of staging hate crime

Jussie Smollett faced charges for allegedly staging a racist and homophobic attack on himself in Chicago. He was accused of hiring two brothers to carry out the attack and lying to the police. The investigation revealed inconsistencies in his account, leading to a different version of events. Smollett allegedly planned the attack after receiving a threatening letter and was disappointed with the studio's response. He instructed the brothers on how to carry out the attack, which was captured on CCTV. Despite being indicted, charges were initially dropped after Smollett forfeited his bail and completed community service.

What was the substance that was sent to Smollett in a threatening letter?

What was the outcome of the charges against Smollett after they were initially dropped?