A Lafayette karate school will hold a women's self-defense seminar and fundraiser this weekend. Cajun Karate will host the class from 1:00 P. M. until 3:00 P. M. this Saturday at its campus located at 133 Digby Avenue. Girls and women ages 13 and older can participate. The school is asking for a minimum donation of $10 per participant. The money raised will be donated to Mandy Grayson, the widow of Lafayette Police Corporal Joel Grayson. Corporal Grayson died in a boating accident last month.