Avoide Scammers

It all started about 3 months back she was chatting as all we do in yahoo messenger. I was in Miami that time so we both were chatting. She told me that she is going to Lagos for her modelling show as she was a model working for a TV channel. She started receiving mails from Lagos from a guy names "Garuba". He used to mail her saying that he is a severe cancer patient and needs 1000 dollars for his urgent surgery. S told me that she received at least about 10 mails from him in that month. As she was supposed to go to Lagos she thought that it will be good to help someone who needs operation for a deadly disease like cancer. I remember that i was the only who dropped her to airport when she was leaving for Lagos. Everything was fine for a month. She used to call him once a week and she used to sound very normal.In her last call she told me she have helped him (scammer which she didnt knew ) with 1000 dollars for his surgery, and it was normal.