Why he was a killer?

“A woman was found killed on the pavement. Unfortunately, police was unable to find out who was the murderer, but fantastic Sherlock Holmes taught a bit and picked up the woman’s phone which was on the ground next to her. He dialed the first number which was on it’s call list. There was a man talking on the phone.

Sorry sir, but i must have called to tell you that a woman has been shot. come here as soon as possible. ”said Sherlock without any additional information”.

No sooner had that man arrived at the crime scene that Sherlock said he was the murderer and he was caught.”

I’ve got a question. What made Mr.Holmes to say that man was the woman’s killer???