in all innocence
1. Without ill or malicious thought or intention. Witnesses testifying on her behalf claim the woman smuggled the medication in all innocence, with the sole aim of helping a suffering family member who could not afford treatment. I'm reminded of the scene in the original Frankenstein film, where the monster, in all innocence, tosses the little girl into the lake because he saw her doing the same to her flower petals.
2. Without knowledge or awareness of the significance of something or some situation; naïvely or guilelessly. The precocious child asked the pilot, in all innocence, how likely it is for a plane to crash. The student stared at me blankly and then asked, in all innocence, if she should be taking notes on the lecture.