Sydelle Pulaski.
The bomber was Angela Wexler, the mistake was Crow, and the burglar was Sandy McSouthers, who was also revealed to be Sam Westing.
Sydelle Pulaski because Sam Westing meant to send it to Sybil Pulaski
sydelle was a mistake. Westing was looking for sybil, who was crows best friend.
When he was doing roll call.
Sam Westing's mistake in "The Westing Game" was to pretend to be a different person, Barney Northrup, in order to bring together the heirs for the game. This deception ended up creating confusion and mistrust among the heirs, leading to unexpected outcomes in the game.
In "The Westing Game", Sybil Pulaski is revealed to be the daughter of Sam Westing. This connection is a key part of the plot and is a major surprise twist in the story.
The mistake in "The Westing Game" was found in the name of one of the heirs. Judge J.J. Ford realized that one of the tenants, Sydelle Pulaski, was actually the mistake since she wasn't originally paired with an heir but was added into the game by Samuel W. Westing as a red herring.
Sandy McSouthers is a mysterious character in "The Westing Game" who poses as a doorman at Sunset Towers. He is revealed to be the financially successful mistake of Sam Westing, one of the heirs in the game. Sandy serves as a crucial link to the Westing family, helping to unravel the mystery of the Westing game.
In "The Westing Game," Grace Wexler cancels out people as being the mistake by using logical deduction and reasoning to eliminate suspects who do not fit the profile of the possible criminal. She can cancel out individuals by analyzing their behavior, alibis, motives, and reactions to events in the story. By systematically eliminating those who do not match the criteria, Grace is able to narrow down her list of suspects and eventually uncover the true culprit.
Those are the suspects for Sam Westing's murderer except one tenant who was a "mistake"(Sybelle Pulaski).
I will assume two things. 1. You mean the mistake. 2. You made a mistake and you mean 1 person. The mistake is Sydelle Pulaski. The murderer is Crow ( I am 97% sure) The burglar is Sun Lin Hoo. Hope I helped!
Sam Westing's mistake was faking his own death and setting up the Westing game as a way to find his true heir. This led to confusion, deception, and a variety of personal challenges for those involved in the game.