Elliott immediately became the prime suspect, and with help from Youngstown authorities, a photo was sent to Niagara Falls and relayed to local officers.

At about the same time, the mother of Elliott's girlfriend called police to report her daughter missing, because she hadn't gone to work. Rizzo said the woman was last seen alive at about 10 a.m. Wednesday.

"We don't know much beyond that," Rizzo said.

Two undercover narcotics detectives spotted Elliott riding his rented bike near the corner of Third and Niagara streets, not far from the Rainbow Bridge. They made a U-turn in their unmarked car and followed him.

Elliott sped up, pedaling through a parking lot at Niagara Street and Rainbow Boulevard with the officers in pursuit.

"He fell from the bike," Rizzo said. "Other officers were converging on the area. When he rose to his feet, he did so with a folding knife open, lunged toward one of the police officers, waved the knife at one of the police officers, at which time a different police officer employed his Taser, striking him, and the suspect fell to the ground."

Rizzo said Elliott had a cut on his hand, believed to have been caused by his own knife as he fell after being stunned by the Taser.