Accused cop killer Darrell Fuller leaves the Nassau County Courthouse...

Accused cop killer Darrell Fuller leaves the Nassau County Courthouse on Monday, July 7, 2014 in Mineola. Credit: Howard Schnapp

Jurors in Darrell Fuller's murder trial got a look Monday at the semiautomatic handgun that authorities have alleged he used to kill a Nassau police officer and a Brooklyn man.

The parents and sister of slain Officer Arthur Lopez were among those in court as a detective testified about finding the pistol in a car on 116th Avenue in Queens on the day after the Oct. 23, 2012, slayings.

"We saw a Ruger handgun on the wheel well of the spare tire," NYPD Det. Patricia Angst said of a Nissan Altima.

The Altima's owner previously testified it was parked by the apartment of a girlfriend whom she let use the car -- a woman who was dating Gerald Williams. Jurors have already seen a photo from Williams' phone of him and Fuller together, and testimony showed Fuller's phone number was listed as a contact in Williams' phone.

Prosecutors allege Fuller, 34, of Queens, fatally shot Lopez, a 29-year-old Emergency Service Unit member, during a traffic stop at the Nassau-Queens line after fleeing the scene of a crash. They claim Fuller drove south on the Cross Island Parkway before shooting construction worker Raymond Facey, 58, and escaping in the man's car.

The prosecution has alleged Fuller later had a friend shoot him with the same gun he used in both killings so he'd look like the third victim.

Prosecutors also used Sprint records from phones belonging to Fuller and Williams to try to show the approximate locations of both on the day of the homicides.

Nassau Det. Sgt. Devin Ross testified a cellphone location can be fixed within about a quarter mile in an urban environment by seeing how a Sprint device communicates with cellphone towers.

Company records showed Fuller's phone was in the area of Lopez's slaying about the time it happened and came from the hit-and-run area, Ross' testimony showed.

The records also appeared to link Fuller to an area near the Queens preschool where authorities said he later hid.

They also showed Williams' phone communicated with a cell tower by that school after Fuller's phone and his phone exchanged multiple contacts.

But defense lawyer Kenneth St. Bernard of Mineola brought out testimony from Ross that pinpointing a phone's location isn't exact and Sprint doesn't guarantee the accuracy of their records.

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