TRENTON - A state appellate court has upheld the murder conviction of a man serving a life sentence for the killing of a Lakewood police officer.

Jahmell Crockam was convicted of killing Lakewood Patrolman Christopher Matlosz in 2012.

Authorities say Crockam walked up to the officer's cruiser in January 2011 and shot him three times at point blank range.

A public defender representing Crockam had argued the jury that convicted him was tainted by testimony about Crockam's warrants and comments he made about vowing to kill an officer before he would allow himself to be arrested.

The appellate panel rejected those arguments in a decision issued Wednesday, and said that the comments are "clearly evidence of his state of mind" when the shooting occurred.

The panel also said that the warrants established Crockam's motive for shooting Matlosz.

The Associated Press wire services contributed to this report.