A double murder remains unsolved now that a Rolling Meadows jury acquitted Marco Lopez of the 2014 shooting deaths of a Palatine father and son after a trial that lasted nearly two weeks.

Jurors deliberated about four hours Thursday afternoon before reaching their verdict, which followed more than two hours of closing arguments in which defense attorneys said law enforcement’s “tunnel vision” resulted in the prosecution of their client.

Cook County Assistant Public Defender Caroline Glennon said during her closing argument the state had no physical evidence to support prosecutors’ claims Lopez gunned down Segundo Reynoso, 36, and his 15-year-old son Luis on March 19, 2014. No DNA or fingerprints placed Lopez at the scene, and forensic scientists found no blood or gunshot residue on his clothes, according to witnesses.

“We’re very happy,” Glennon said after the verdict. “We’re very relieved. The jury worked very hard and came to the correct decision in this case.”

Prosecutors argued Lopez, a member of a Chicago street gang, killed the Reynosos because he believed Luis was a “snitch” who told police about burglaries the two had committed.

Throughout the trial Glennon promoted an alternative theory of the crime, putting the blame on a rival gang member who was angry that Luis Reynoso initiated the man’s teenage son into Reynoso’s gang.

“The state will say Marco Lopez is the unluckiest man in the world,” Glennon said in her closing. “He is, because he’s sitting here for (the man’s) crime. ... It’s not justice for the Reynoso family to have the wrong person sitting in jail and the killer walking free.”