Founder of Center for Alcohol and Drug Research Education had a ‘true passion’ for helping alleviate others’ pain   William R. “Bill” Caltrider Jr., the founder and president of the Center for Alcohol and Drug Research Education, who also played a major role in the rehabilitation facility Tuerk House, died of heart failure July 15 at MedStar Union Memorial Hospital. The Ednor Gardens resident was 75. “Bill saved Tuerk House,” said Dr. Michael Hayes, who…