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Ted Koppel

Alex Wong/Getty Images

It's not surprising, but nonetheless tragic.

The New York City medical examiner has ruled that 40-year-old Andrew Koppel's death earlier this month was accidental, and the result of a lethal dose of alcohol, prescription medication and illegal drugs in his system.

According to the medical examiner, Ted Koppel's son's official cause of death was acute intoxication due to the combined effects of alcohol, heroin, cocaine and the generic form of the painkiller Valium.

The late Koppel, who left behind a pregnant girlfriend and a 2-year-old daughter, passed away in the early morning hours of June 1 after going on a nearly 12-hour drinking binge, bar-hopping with a drinking buddy he met only earlier that day.

No foul play was ever suspected in Andrew's death and immediately after his untimely passing, parents Ted and Grace Anne released a statement expressing their sorrow over their loss.

"Our son, Andrew, was a brilliant, caring man, whose loss we will mourn for the rest of our lives," they said.