Danny Diaz-Delgado was lured into an alley, ambushed by two men, tied up with tape and forced into the trunk of a car before being executed on the bank of a creek outside Trenton - all while begging for his life.

The grim details of the 20-year-old Trenton man's final moments emerged Friday in court and in arrest documents, detailed by a witness in the case again his alleged killers.

During the detention hearing of the second suspect arrested - 29-year-old Akmal "AK" Alvaranga - Mercer County Assistant Prosecutor Heather Hadley told the court Alvaranga was brought into the robbery planned by co-defendant Rufus Thompson.

Police found Diaz-Delgado on the bank of Assunpink Creek in Hamilton on March 24, still bound and riddled with bullets. He vanished the night before while trying to buy a PlayStation console off Facebook Marketplace for his little brother.

The seller was Thompson, and there was no PlayStation, only a plan to rob the unsuspecting Diaz-Delgado, authorities have said.

Danny Diaz-Delgado, 20, of Trenton (Facebook photo)

In court Friday, Hadley said a witness, who has known Thompson for a year, said she heard Thompson talking to Alvaranga on the phone and asking him to help with the robbery.

Thompson also told her he that he was planning on robbing someone "by acting like he was going to sell him a PlayStation gaming console," Hadley said.

The witness said she had seen messages between Thompson and Diaz-Delgado discussing the PlayStation for sale. She also knows Alvaranga and said he has "an awkward walk," according to court documents.

Alvaranga goes by the street name "Ak."

Akmal Alvaranga appears in court in Mercer County on April 20, 2018. At right is his lawyer Melissa Karabulut. (Michael Mancuso | NJ Advance Media)

After Diaz-Delgado was found murdered, Thompson met with the witness several hours later and told her he had lured Diaz-Delgado to the alley behind Alvaranga's home on South Cook Avenue.

Alvaranga pointed a gun at the victim and ordered him inside the garage, Hadley told the court.

Once inside, Diaz-Delgado was tied up with pink duct tape and an extension cord, and they took $200 from him - which he'd had just withdrawn from an ATM near his home before heading to the meet-up location.

Thompson wanted more money, so he took Diaz-Delgado's bank card and made another transaction, while Alvaranga stayed with Diaz-Delgado, the prosecutor said.

"When Thompson returned they put 'Danny' in the trunk of 'Ak's' car and drove him somewhere in Hamilton, near a river where 'Ak' shot 'Danny,' "court documents say.

He begged for his life the entire time, the witness told a detective.

After his arrest, Alvaranga told police during an interview that he knew of the robbery plan, and that when Thompson returned from getting more cash that Danny would be killed, but said Thompson was the shooter, Hadley said.

Alvaranga's defense attorney Melissa Karabulut, told the court her client was forced to help with the robbery under duress, and wasn't the main actor.

Mercer County Superior Court Judge Ronald Susswein found that the seriousness of the charges, and the risk of Alvaranga skipping court apperanced and the danger to the community were too high to allow his release.

Alvaranga was ordered detained to the Mercer County jail pending the resolution of his case. He is next scheduled to appear in court in early May.

Diaz-Delgado's family and friends have described him as a young man who loved video games, was "full of Christ" and was active in the youth ministry at the church. He was studying engineering at Mercer County Community College.

Olivia Rizzo may be reached at orizzo@njadvancemedia.com. Follow her on Twitter @LivRizz. Find NJ.com on Facebook