Who done it? (A murder mystery campaign)

Welcome one and all to “who done it?” A murder mystery DND inspired campaign, I am your game master @Adriett who will guide you and all other members of the Welbourne manor. Your character will be invited to a week long retreat to a manor up in the country side by an old friend (or enemy) Marcus Welbourne, who is a man with a bit of a unstable track record. He drinks and has an extremely short temper but the first day of the retreat go well and Marcus is in a surprisingly good mood, acting friendly to all of the guests, even the ones he has a less favourable relationship with. though good things cant last for ever, the next day everyone in the house discovers that Marcus has been murdered. Now it is up to the group to discover who the killer is before they act again.