In Monster, what does Steve's lawyer want the jury to conclude from Zinzi's testimony?

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literaturenerd eNotes educator| Certified Educator

In the book Monster, Steve's lawyer, Kathy O'Brien, wanted the jury to see that Zinzi (Sal Zinzi) is not a credible witness.  O'Brien brings many facts regarding his checkered past and the relevancy of his testimony.

1. O'Brien questions Zinzi's history in jail.

2. O'Brien gets Zinzi to admit that the only reason he is testifying is so that he can get out of jail early.

3. O'Brien gets Zinzi to admit that he uses stories and people to benefit himself.

O'Brien found it important that the jury saw that the prosecution was using the testimony of 1) a convicted criminal and 2) a man who uses people for his benefit.  Basically, O'Brien wants the jury to see that Zinzi could be making up his testimony regarding the trial simply so he can get out of jail early.