Investigators spoke with Féliz Garcia at a local hospital and were then able to locate the other five suspects now in custody.
Officials declined to address what the motive for the shooting might have been, but said the suspects carried out the attack on Ortiz for about $400,000 Dominican Pesos, just shy of $8,000.
Ortiz was shot in the back at close range on Sunday while sitting at an outdoor bar in Santo Domingo, the Caribbean nation's capital city. Authorities gave the name of the alleged shooter as Rolfy Ferrery, aka Sandy.
Luis Alfredo Rivas Clase, 31, one of the four remaining suspects still at large following Sunday's attempted hit on the former baseball slugger, is also one of the suspects wanted in connection to an April 2018 shooting in Reading, Pennsylvania, according to NBC 10.
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Feliz García's lawyer says his client is an innocent motorcycle taxi driver who had no idea his passenger was going to commit a crime. Surveillance video from the night club identified Garcia as the assailant and shows him walk up behind Ortiz at the club while the 43-year-old former World Series MVP was in the middle of a conversation with another man and shoot him in the back. "He's a fan of David's", the attorney, Deivi Solano, said Tuesday.
Ortiz was shot at a club in Santo Domingo and underwent emergency surgery to fix damage done by the bullet to both his intestines and his liver. "His condition is guarded and he will remain in the ICU for the coming days, but he is making good progress towards recovery", she said.
Beloved in his hometown, Ortiz travelled the unsafe streets of the Dominican capital with little or no security, trusting his fans to protect him, according to friends.
The details were contained in a court document obtained by the Associated Press on Wednesday.