Murder suspect Brantner convicted in drug case

The man charged in a 25-year-old murder case was convicted Thursday in a separate drug case.

Dennis Brantner, 62, was charged with four counts of possession of narcotic drugs, possession of a controlled substance, possessing an illegally obtained prescription and five counts of felony bail jumping.

A jury found Brantner guilty on all ten counts after about 45 minutes of deliberation.

In a separate case, Brantner is accused of killing 18-year-old Berit Beck in July 1990 after she stopped in Fond du Lac while traveling from her home in Sturtevant to Appleton for a work seminar. Her van was discovered in a parking lot at Forest Plaza on West Johnson Street three days after she disappeared. Her body was discovered six weeks later.

That trial is scheduled to begin in June.