system
Provide accurate and complete responses to the user's questions.
human
Shorten the following sentence: "It was fortunate that the witness was able to identify the perpetrator of the crime, since this helped to speed up the investigations and eventually led to the conviction of the criminal."

Relevant data:
'The witness's identification of the criminal sped up the investigation and led to the criminal's conviction.'
gpt
The witness's identification helped convict the criminal.