After amending a defendant's murder charge on Friday, Pottawatomie County District Attorney Allan Grubb said he believes the man originally charged in the 2017 Shawnee homicide was not the shooter so he plans to file murder charges against another suspect based on new evidence he's uncovered since taking office Jan. 7.

After amending a defendant's murder charge on Friday, Pottawatomie County District Attorney Allan Grubb said he believes the man originally charged in the 2017 Shawnee homicide was not the shooter so he plans to file murder charges against another suspect based on new evidence he's uncovered since taking office Jan. 7.

Antonio Maurice Sambrano, 20, was originally charged two years ago with first-degree murder, deliberate intent, by previous District Attorney Richard Smothermon's office. Sambrano was accused in the Jan. 4, 2017 shooting death of Isaiah Anthony Harjo, 27, which occurred at Chapel Ridge Apartments, 130 E. 45th Street.

Sambrano's case was scheduled for the upcoming jury term and he appeared in Pottawatomie County District Court Friday for the pre-trial docket.

“Over two years ago, Antonio Sambrano had been charged with Isaiah Harjo' murder. The jury trial had originally been scheduled over a year ago, and the case had been continued three times,” Grubb said is a press statement released Saturday. “However, after thoroughly interviewing witnesses as soon as I took office last week, I believe someone else actually shot and killed Mr. Harjo.”

Grubb said as the newly-elected district attorney for Pottawatomie and Lincoln Counties, he has a duty to seek justice, and that includes not sending people to prison for crimes they did not commit.

“Mr. Sambrano was present when Isaiah Harjo was murdered. Therefore, I made the decision to amend the charge against Mr. Sambrano to the more appropriate crime of accessory to murder. On Friday, Mr. Sambrano pled guilty and he was sentenced by the court,” Grubb said.

After pleading guilty to the amended charge, Sambrano was sentenced to serve a five-year suspended sentence with supervised probation. As a result of that sentence, Sambrano, who has has been in jail since his arrest on Jan. 5, 2017, was released from the Pottawatomie County Public Safety Center after serving two years and 12 days in jail. He'll continue to serve out his five year suspended sentence on probation.

Based on the new information in the case, Grubb said he plans to prepare and file a murder charge against Harjo's murderer.

Grubb said that suspect, who he is not naming, is currently jailed in an unrelated case.

Sambrano has nothing on his record but a traffic ticket, Grubb said, while the suspect he plans to charge does have a prior criminal record.

It was just before 1:30 p.m. Jan. 4, 2017 when emergency crews responded to a shots fired report at building 11 at Chapel Ridge Apartments, with reports indicating the shooting occurred in an apartment where Harjo reportedly resided.

As part of the case originally investigated by Shawnee police, the Office of the Chief Medical Examiner concluded Harjo died of a gunshot wound to the chest, with manner of death listed as a homicide.

Harjo was transported from that scene to OU Medical Center in Oklahoma City, where he died.

Watch for updates.