A former resident is back in Marinette County to share what he knows about drug and alcohol addiction and how to break the potentially deadly habit. Jeff VanVonderen, a graduate of Coleman High School, is a motivational speaker, author, and certified professional interventionist. He has become a regular feature on A&E’s documentary series Intervention and will speak about substance abuse at Coleman High School Tuesday from 12:45 until 2:45 PM. He’ll also share his presentation Tuesday evening from 6:00 until 8:00 PM at U-W Marinette. The event is free and open to the public.