Court appeal delay on the execution of a Mexican international convicted of murder.

Edgar Tamayo will be thrown to death row by 6pm on Wednesday by lethal injection but delayed by the court.

Despite the international protest for the convicted, clemency remained unconsidered. Texas police previously contest about the execution of Edgar Tamayo, 46 year-old Mexican national who killed the police officer Guy Gaddis,  by shooting him in the head three times.

Tamayo shot Gaddis while he was handcuffed in a police car and tried to escape but arrested couple of blocks away where the shooting happened. Tamayo has been convicted since 1994.

Edgar Tamayo will be executed using pentobarbital drugs, which lawyers claimed to give the person unjust suffering.

Texas had executed five prisoners using the pentobarbital since September. The said used of the drug started on July 2012.

The death of the Mexican national convicted for killing a police officer 20 years ago, was delayed. Texas Prison official gave the court until midnight to issue an amnesty for the said convicted.

A Federal Judge refused to grant clemency for Tamayo, considering the act as "adequate and fair".

Tamayo's lawyer claimed that the convict was mentally disabled and consular assistance could stand to his rights and can keep him from execution. The lawyers said that       Tamayo's case was defiled since he could not get help from own nation under a legal agreement.

Now the court is considering two appeals, one was that Tamayo as mentally disabled and the other is the consular appeal.

United Nations' International Court of Justice mandate United States to reconsider the execution of 51 Mexican to death row. Tamayo was one of them.

Two executions had been done and if the high court will not appeal the execution, Tamayo will be the third.

The issue spread though out the world, leaving Tamayo's family with letters of support from 67 countries.