Macaulay Culkin's sister, Dakota, died Monday after being hit by a car as she stepped off a curb in Los Angeles.
The 29-year-old Culkin died from massive head trauma at UCLA Medical Center. The story was first reported by TMZ, which said police were investigating the incident, but E! News has since learned that police say the driver of the car stopped, tried to help Culkin and identified himself to law enforcement. Detectives determined he was not under the influence of drugs or alcohol and that no crime was committed.
The news comes less than a week after actor Mark Ruffalo's brother, Scott, died in what police now believe was an accidental shooting.