BREAKING: Multiple Chicago police sources tell me a Venezuelan migrant is in custody for questioning in relation to the heinous shooting death of 18-year-old Loyola University student Sheridan Gorman. CPD tells Fox that Gorman, from Westchester County NY, was walking with friends along Chicago's lake front around 1:30 AM Thursday when a "unknown male offender" opened fire at the group, hitting Gorman in the head. She was pronounced dead at the scene. Developing story.