The person responsible for turning in the accused creator of the Sasser worm <A HREF="http://news.yahoo.com/news?tmpl=story&u=/ap/20040616/ap_on_hi_te/germany_computer_worm_1">is now under investigation</A> for being a party to the crime. A magazine reported that the informant who provided the tip to Microsoft that led to the arrest of Sven Jaschan is a classmate of the German teen.