The only way she could identify the killer is if he's still here.
A lot of snooping has to be done to identify the real killer.
Assure the public you're doing everything you can to identify and arrest the killer, but don't go into details.
Do you think she'll be able to identify the killer?
The police were unable to identify the killer, though the investigators had a few clues.
"Suppose there was a man who witnessed a murder and identified the killer."
Most of the death certificates did not identify the killer.
None of the witnesses came forward to identify the killer.
Then the detective received anonymous calls from two people who said they might be able to identify the killer, but were afraid to come forward.
Although there were witnesses who identified the killer, he still remains at large.