A district court judge will hear arguments Tuesday that a supreme court ruling in June puts 15 of Dzhokhar Tsarnaev’s convictions in jeopardyLawyers for Boston Marathon bomber Dzhokhar Tsarnaev are heading to court to urge a judge to grant him a new trial. Judge George O’Toole Jr is scheduled to hear arguments Tuesday in US district court, but only on the portion of Tsarnaev’s motion related to a US supreme court ruling issued after Tsarnaev’s trial.