An attorney for James Horn - the Glenview police officer charged with felony perjury - said Horn would have given a truthful testimony during the 2014 drug trial of Glenview resident Joseph Sperling had he been able to see the video prior to trial.

Read More: Glenview Police Officer Charged With Perjury Attorney Daniel Herbert told the the village Board of Fire and Police Commissioners Horn would have been able to correct his testimony during a hearing on Police Chief William Fitzpatrick's request to fire Horn in connection with allegations he lied on the stand during a 2014 Chicago drug trial, according to the Chicago Tribune.

"Officer Horn made a mistake when he testified. It happens all the time," Herbert said. Fitzpatrick's motion asks for Horn's termination on the grounds that he violated department regulations by making false or untrue statements, violated the constitutional rights of others and behaved with "conduct unbecoming a Glenview police officer."

Horn and three Chicago police officers are charged with felony perjury in connection with the 2013 drug arrest of Glenview resident Joseph Sperling and the 2014 trial in which a video of the arrest surfaced that contradicted the testimony of Horn and the other three. Horn had been put on paid leave by the department. He has been on unpaid leave since July 2, when the perjury charge was levied against him by State's Attorney Anita Alvarez.