RACINE, Wis. (AP) -- Law enforcement officers testified Tuesday they used cell phone tracking to catch the man on trial for the fatal shooting of a Kenosha County sheriff's deputy.

Testimony about the urgent search for the killer of Deputy Frank Fabiano Jr., 48, last May 16 dominated the second day of the trial of Ezequiel Lopez-Quintero, 45, of Kenosha, on charges of first-degree intentional homicide and carrying a concealed weapon.

Officers said they got Lopez-Quintero's cell phone number from his daughter, then tracked the signal through his phone service provider.

Fabiano was shot after making a traffic stop in Somers involving Lopez-Quintero in his van. A University of Wisconsin-Parkside officer testified Monday he had followed after Fabiano, witnessed the shooting and saw the van's driver flee into the woods.

Kenosha County Sheriff's Capt. Larry Apker said Kenosha police Officer Aaron Dillhoff found information that led to the arrest, first running the van's license plate and then contacting Lopez-Quintero's daughter, who testified she gave police her father's picture and cell phone number.

The cell phone number was used to track Lopez-Quintero to the parking lot where he was arrested about four miles from the shooting scene.

Kenosha police Officer Tom Hansche said he was investigating a broken car window at the Wood Creek apartment complex when he heard a noise, turned around, saw Lopez-Quintero and ordered him to the ground.

"He was very cooperative," Hansche said. "He said nothing."

Lopez-Quintero never tried to draw the weapon officers spotted in his waistband.

Medical Examiner Mary K. Mainland testified Tuesday about the deputy's wounds, saying he was shot three times but the fatal wound was from the shot that hit him in the head.

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Information from: Kenosha News, http://www.kenoshanews.com

(Copyright 2008 by The Associated Press. All Rights Reserved.)