1. There's not a scintilla of evidence.

2. Not a scintilla of evidence to prove it.

3. There isn't a scintilla of evidence to prove it.

4. They had not found a scintilla of evidence against him.

5. He says there is "not a scintilla of evidence" to link him to any controversy.

6. This time, the crime of mohareb has been Concretized into the formal charge, for which there is not a scintilla of evidence, that Ahari is an agent of the bizarre religio-Marxist cult known as the Mojahedin-e-Khalq