The rarity of former legal colleagues facing off as adversaries came at a hearing to decide if Peterson, a former suburban Chicago police officer, should get a new trial in the slaying of his third wife.
His current attorneys contend that former lead attorney Joel Brodsky botched Peterson's trial, which ended in September with jurors convicting Peterson of murdering his third wife, Kathleen Savio.
Witnesses during the daylong hearing Tuesday included Brodsky, a law professor who teaches ethics and even a spectator during last year's trial.
Peterson, 59, faces a maximum 60-year prison term for killing Savio, who was found dead in her bathtub with a gash on her head. The former Bolingbrook police sergeant gained nationwide notoriety after his much younger fourth wife, Stacy Peterson, vanished in 2007. Her disappearance led authorities to exhume Savio's body and change the cause of death from an accident to a homicide.
The dispute between Peterson's former lawyer and his current ones is in sharp contrast to the beginning of Peterson's trial, when the limelight-seeking defense team faced the media together. Several times, they joked that Stacy Peterson—who authorities presume is dead but whose body was never found—could show up any day to take the stand.
The most dramatic moment at Tuesday's hearing came when current Peterson attorney Steve Greenberg—who has engaged in an open war of words with Brodsky in recent months—announced that Brodsky was his next witness.
Brodsky at first did not appear, and eventually the judge ordered him to the witness stand.
In public, Brodsky and Greenberg have denounced each other as liars, but the back and forth in court Tuesday was comparatively reserved and polite.
Under questioning, Brodsky conceded Peterson received money for media appearances before Peterson was jailed in 2009. Greenberg has argued Brodsky was more concerned about drumming up publicity for his legal practice than defending Peterson.
As the day's proceeding's ended, lead prosecutor James Glasgow was asked by reporters if he knew of other cases where one-time legal allies ended up facing each other in court.
"In 30 years, I have never seen this before," he said.
As he left, Greenberg said he didn't enjoy putting a fellow lawyer on the stand—but added he felt compelled on Peterson's behalf.
"It's uncomfortable every time you have to throw stones at a lawyer," Greenberg said. "I don't like to do it. ... But this time, it has merit."
Brodsky told reporters he didn't think questions about whether he or Peterson profited by the decision to go on a talk-show circuit proved he had badly represented Peterson.
"(That's) real, real weak," he said about the defense contention. "What do they have (against me)? Nothing."
Earlier Tuesday, a professor at Chicago's John Marshall Law School told the judge that Brodsky had violated ethical norms by allegedly agreeing to split future book and movie proceeds with Peterson years before the case even went to trial.
"It seems that this is over the line," Clifford Scott-Rudnick said.
Cutting business deals with clients, he said, raises the danger that lawyers will act in their own business interest rather than in their client's legal interest.
In a phone interview later, Brodsky said he never sealed deals with Peterson regarding books or movies.
"There was no such agreement anywhere about splitting future profits," he said. Any payments Peterson received related to publicity, Brodsky added, were used to pay Peterson's legal bills.
The lawyerly feud escalated earlier this month when Brodsky filed a defamation lawsuit against Greenberg, which claims Greenberg became "irrationally fixated and obsessed with destroying Brodsky."
In an open letter to Brodsky in September, Greenberg accused him of "single-handedly" losing the trial, adding he "wafted the greatest case by ignorance, obduracy and ineptitude."
Another accusation by Peterson's current attorneys is that it was Brodsky's decision alone to call divorce lawyer Harry Smith as a witness—testimony that badly backfired on Peterson's cause at trial.
A spectator at the 2012 trial, Jennifer Spohn told the judge Tuesday that she overheard Greenberg and Brodsky talking in the hall outside court, Greenberg cursing and telling Brodsky he was upset Smith was taking the stand.
"He said, 'I filed 74 .... motions to keep Smith from testifying, and now you're going to undo it,'" she said.
Brodsky hoped Smith's testimony that Stacy Peterson allegedly sought to extort her husband would dent the credibility of statements she made to others that Drew Peterson threatened to kill her.
During his testimony, though, Smith repeatedly stressed how Stacy Peterson seemed to sincerely believe her husband had killed Savio. Some jurors later said that Smith's testimony persuaded them to convict Drew Peterson.
Most experts say Peterson's chances of winning a retrial are slim.
If Judge Edward Burmila rejects the motion for a retrial, he has said he would move on quickly to Peterson's sentencing.
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