A long-awaited resentencing hearing for Lyle and Erik Menendez ground to a halt Thursday just hours after attorneys arrived at the courthouse in Van Nuys, partly over a risk assessment report on the brothers that was was not intended for this week's court proceeding.

Brothers Erik and Lyle Menendez, who were sentenced to life in prison for the 1989 murders of their parents in Beverly Hills, are scheduled for a hearing on Thursday that could determine whether they are eligible for reduced sentences and a potential path to parole after more than 30 years behind bars.

The proceedings were pushed back for three weeks over the issue of whether a key report on Erik and Lyle Menendez was admissible.