charlie tan was an ivy league or with a bright future, and then, charlie's dad was killed in everything changed. police are being told one story. but the evidence was telling them another, and there were also three 9-1-1 calls, in one of them hold the clue that would unlock what really happened on that wintry night? here is dennis murphy, with house of secrets. >> cayuga, cayuga lake in ithaca new york. and it's where you'll find one of the most competitive, most prestigious universities in the nation. cornell, the ivy league big red. more than 13,000 undergrads here, will with good fortune take their places in medicine, the law and the arts.