I read this following sentences on a newspaper and I cannot understand the second sentence's structure.
He added: 'We have all had moments where a smell can take you back somewhere in time. That the victim could identify this smell provided us with another piece in the puzzle.'
What I see is that a sentence, "the victim could identify this smell", is used as a subject of another sentence. For me it sounds wrong and it should be noun phrase. For example it could have been:
The victim's identification of the smell provided us with another piece in the puzzle.
or there could have been a "so that it"
the victim could identify this smell so that it provided us with another piece in the puzzle.