Arrest in connection with death of DeNiro's grandson

Authorities have arrested a woman they believe is directly tied to the overdose death of Robert De Niro’s grandson, Leandro De Niro Rodriguez.

TMZ has learned that federal agents are now involved in the vase.

Law enforcement sources told the outlet that 20-year-old Sofia H. Marks was arrested Thursday in NYC by a joint NYPD and federal task force. They believe she sold drugs to Leandro before his death.