Judge Denies Convicted Killer David Biro's Motion For New Hearing

WINNETKA, IL — The life sentence of convicted killer David Biro will stand after a Cook County Circuit Court judge determined that the former New Trier student failed to show substantial cause that his constitutional rights were violated in his sentencing.

In a 16-page ruling issued on Friday, Judge Mary Margaret Brosnahan dismissed Biro’s petition for post-conviction relief and granted the state’s petition to dismiss the case.

Biro was convicted in 1991 of two counts of first-degree murder and one count of intentional homicide of an unborn child. He was sentenced to serve two life sentences, but the court refused to impose a separate sentence for the death of the unborn child and determined that the offense merged into the murder conviction, according to court documents.

Biro, who was a 17-year-old junior at New Trier in 1990, was convicted of the killings of Richard and Nancy Langert after a jury determined that Biro had shot Richard Langert in the head after handcuffing him and that he shot Nancy Langert twice. Nancy Langert was pregnant at the time of the home invasion, which led to Biro being found guilty of the intentional homicide charge.

His attorneys had been trying to use a prior Supreme Court decision that ordered resentencing for juveniles who had been sentenced to mandatory life sentences.

Court documents show that this is the fourth time Biro has sought a new trial for resentencing. A judge earlier this month pushed a possible decision back, citing an ongoing murder trial.