Brain Teaser.... A Very Medieval Murder!?

Question

On the Friday before St. Peter's Fair, Abraham, a moneylender, was found dead, in the great hall of Keswick Castle. His wine had been poisoned with monk's hood and his silver pennies stolen.
The next day four men, seated on a bench and two stools in front of the fireplace of the great hall somberly discuss the terrible deed. Their names are Godfrid, Nicholas, Rannulf and Torsten. And the are (not neccessarily respectively the duke of Cumberland (and lord of Keswick Castle); the sheriff of Lakeshire; the abbot of Dalton Monastery; and the mayor of Penrith.
a) a servant purs a goblet of wine for Torsten and a horn of beer for Godfrid.
b)the mayor turns all the way around to watch the servant leave the hall. He them speaks to Nicholas next to him.
c)neither Rannulf nor Godfrid has any sisters.
d)the abbot drinks only water.
e) Rannulf, who is sitting on one of the stools, is the sheriff's brother-in-law. The abbot is next to Tannulf on his left.
(continued below....)

Suddenly a hand stealthily moves forward to pur monk's hood into Torsten's wine. The murderer strikes again! No one else is in the room.
Picture: Exit at the back of the room... all chairs are facing twoards the fireplace at the front of the room. There's a bench with two seats , B and C, facing directly at the fireplace, and one chair on each side of the bench facing at an angle. A and B.
1) What is the title (or profession) of each man?
Nicholas:
Torsten:
Godfrid:
Rannulf:
2)Where is each man sitting?
"A"
"B"
"C"
"D"
3) Who is the murderer?

Answer 1

he's sitting in d and the mayors the murderer

Answer 2

1) What is the title (or profession) of each man?
Nicholas: Abbot
Torsten: Sheriff
Godfrid: Lord of Keswick Castle (could be mayor, clues aren't helping me)
Rannulf: Mayor (could be Lord, clues aren't really helping)

2)Where is each man sitting?
"A" = inconclusive (clues)
"B" = inconclusive (clues)
"C" = Nicholas
"D" = Rannulf

3) Who is the murderer?
Could be Nicholas, could be Gordfrid, depending on seating. However, if we ASSUME that the clues lead to Godfrid being the mayor (making Rannulf Lord), Godfrid would be seated in B and Torsten in A. Godfrid would then be the killer, as he was the only one who could reach the goblet without having to get up.