05/18/2012 11:25 am ET

Arnoldo Jimenez, Estrella Carrera's Primary Murder Suspect, May Have Fled To Mexico

The FBI declared the search for a man wanted in the stabbing death of his new wife an "international manhunt" Thursday night after cell phone records suggested he was recently in Texas.

Police have been searching for Arnoldo Jimenez since his wife, Estrella Carrera, was found stabbed to death in the bathtub of her Burbank home less than 48 hours after the two were married.

The FBI issued an unlawful flight warrant for Jimenez Thursday after formally charging him in Carrera's death. Police asked authorities in Texas and U.S. border officials to be on the lookout for Jimenez.

Authorities tracking Jimenez's cell phone use saw him leaving Chicago on Saturday, the night Carrera was killed, and by Sunday his cell phone was traced to Hidalgo, Texas, on the Mexican border, according to the Chicago Sun-Times. Jimenez was born in Texas and still owns property there, and his parents live in Mexico, according to the FBI.

A conversation between Jimenez and his sister in the hours after Carrera's death joins a growing body of incriminating evidence, including a prior domestic violence complaint filed against him and accusations from Carrera's relatives that Jimenez could be violent and possessive.

Estrella's sister Jazmin Carrera told police that Jimenez's sister described the conversation to her:

"She said that he was crying and he was really nervous," Jazmin Carrera said. "He said they had a really bad fight and he had left her bleeding."

According to a federal warrant approved Thursday, a "close associate of Jimenez" told police that Jimenez had said "he was leaving the state of Illinois and if questioned by law enforcement, the associate should tell law enforcement that he went to Mexico," the Chicago Tribune reports.

Carrera and Jimenez have a two-year-old son together, as well as a 9-year-old daughter who is not Jimenez's biological child.