Assassin's Creed Unity Part 45

Sequence 5 (Exploring Paris) Murder Mystery: "The Body Politic" It was a dangerous time to be in politics back then....even more so when you're a French royalist. Two assemblymen were toasting to mending burnt bridges....but one of them slumps over, his cup poisoned. Was it the missing servant, absent at the time? His opponent, secretly getting rid of his opposition? Or someone else entirely? The plot thickens.... (The last clue I couldn't get because it requires Lv. 3 Lockpicking skill)