He found no direct evidence to identify a leaker.

他找不到直接证据来确认泄密者。

《柯林斯英汉双解大词典》

However, no evidence could be found that would throw direct suspicion on him.

然而却找不到可以怀疑他的直接证据。

youdao

However, no evidence could be found that would throw direct suspicion on him.

然而却找不到可以怀疑他的直接证据。

youdao