NEW : Ex-Harvard student pleads not guilty to two counts in fraud , plagiarism case . Brown , 23 , charged with larceny , pretending to hold a degree . Wheeler won 20 Harvard prizes with plagiarized work , prosecutor says . Harvard accused of stealing over $ 45,000 in grants , financial aid .
NEW : Ex-Harvard student pleads not guilty to 20 counts in fraud , plagiarism case . Adam Wheeler , 23 , charged with larceny , pretending to hold a degree . Wheeler won two Harvard prizes with plagiarized work , prosecutor says . Wheeler accused of stealing more than $ 45,000 in grants , financial aid .