An exact motive hasn't been determined, but Craycraft said it appears there was a long-standing feud with Garcia-Munoz and his two co-defendants on one side and Pablo and a friend on the other.
"They couldn't give me a reason for the altercation," he said. "I asked that repeatedly, and you don't get a straight answer."
The two co-defendants, 37-year-old Luis Garcia of 220 Oxford Drive, Apt. 22, and 26-year-old Fidel Flores of 2 N. Burns Ave., were arrested at the scene and charged with complicity to commit murder.
Craycraft said he believed the men worked together at some point, but the relationship of late was one where comments would be made back and forth in the parking lot.
Alcohol was also a factor in the stabbing, police said. The three won't say who had the knife first, he said.
Garcia-Munoz has a number of arrests in Clark County for wanton endangerment, fourth-degree assault, carrying a concealed deadly weapon and driving under the influence, among others.
Elizabethtown Police arrested Garcia-Munoz for alcohol intoxication Friday and was released after giving false information to officers, Craycraft said.
"When he got out, police had another run-in with him," Craycraft said. "This time they did a little more checking. He finally confessed to being Pedro."
Craycraft said he was called early Saturday morning by Elizabethtown police and notified of the arrest.
Following the May 29 stabbing on Oxford Drive where 21-year-old Mateo Pablo died, Winchester Police sent out a teletype to alert other departments of the incident with information on Garcia-Munoz, he said. Elizabethtown Police received the teletype and used that to confirm Garcia-Munoz's identity.