The Latin phrase "orbis pro vox", which is incorrectly translated in-show as "ring for rights", really means "a voice for the world".
Umbrella swifts and ball winders (at least one of which is said to have been invented by the victim) do not make "tight balls," despite the lawyer's claim. Yarn should be wound loosely so as not to destroy the integrity of the fibers and create sizing issues with finished products, and ball winders (with or without umbrella swifts) wind balls at the correct tension.
In all exterior shots of the mansion during flashbacks of the murder, the lights in the room don't go out until the crash of the chandelier hitting the floor is heard. The lights would have gone out as soon as the chandelier was shot out of the ceiling.