A tugboat captain who admitted responsibility for a deadly collision in Biscayne Bay is scheduled to be sentenced Tuesday in federal court. Yusiel Lopez Insua, 46, pleaded guilty in July to seaman’s manslaughter for the July 28, 2025, crash near Hibiscus Island. He faces a maximum sentence of 10 years in prison. Under a plea-agreement recommendation, prosecutors and the defense are seeking a sentence of one year and one day in prison, followed by six months of home confinement. A barge pushed by the tugboat struck a sailboat carrying five girls and their 19-year-old sailing instructor. The girls were attending the final week of a Miami Yacht Club sailing camp for children ages 7 to 15. The three who died were Mila Yankelevich, 7; Arielle Buchman, 10; and Erin Ko, 13. The instructor and two girls escaped after being dragged beneath the barge, according to federal prosecutors. The remaining girl was trapped in the wreckage and drowned. A fourth girl was hospitalized and later released; the fifth girl and the instructor were treated at the scene. Prosecutors said the tugboat’s forward view was blocked by a deckhouse and crane, and no crew member had been assigned to keep watch. They also said Insua was using his phone around the time of the crash. The barge was carrying construction debris. The sentencing will determine the punishment for a collision that killed three children during a local youth sailing program. Insua’s guilty plea acknowledged his role in operating the vessel under conditions that federal authorities said left its path inadequately visible and without a proper lookout.