#2 answer: shoot a photo
#3 answer: because of the autopsy result
#4 answer: bill, when you spell the last four digit of the code it 7718.
#5 answer: the cook, he/she poisoned the man.
#6 answer: because there are bloods in his mustache & hair. That makes it red. He was the murderer
#7 answer: lion who haven't eaten for years, because you can cut your leg to feed it & let it learn how to be vegetarian.
#8 answer: because the tires of his car were checked & proved that it was killed by the time his car passed the crimescene
#9 answer: the detective confirmed that the length of the voluntary jump (which is suicide) & a person who were pushed aren't the same. That's why he can tell it was murder because of the length between the two ways of dying.