Final Answer:
The database used to identify the Night Stalker was AFIS, the Automated Fingerprint Identification System.
Step-by-step explanation:
The Night Stalker, Richard Ramirez, was a noto-rious serial kil-ler and ra-pist in the 1980s. To identify him, law enforcement utilized AFIS, the Automated Fingerprint Identification System. AFIS is a biometric identification system that stores and matches fingerprints electronically. It allows authorities to quickly compare and identify fingerprints from crime scenes against a vast database of prints collected from individuals, including those in criminal records.
In the case of the Night Stalker, fingerprints recovered from crime scenes were compared with those in the AFIS database, leading to the identification and subsequent capture of Richard Ramirez.