How can I get a copy of a 911 call?

My father commited suicide this week and he called 911 first. I know it sounds morbid but I believe that hearing that call and knowing as much as I can of the details of the event will help me to understand and to handle it. I just don't know how to get the information as he was in Tuscon Az and I am in New York. Also, I'd like to know how to get the police report and the coroner's report. Any help will be very much appreciated here.