A crazed job-seeker opened fire on a Brooklyn machine shop Monday — wounding two workers before putting the gun to his own head, police and witnesses said. 
 
 Cameron Waithe, 54, walked into C&A Iron Works in Gowanus at around 11 a.m. and asked worker Oscar Ramirez how he could get a job there. 
 
 “Oscar said he should go talk to the manager,” said colleague Marcos Chantes, 34. 
 
 The company’s manager, Joselo Gonzalez, told Waithe he would have to talk to someone higher up. 
 
 “I told him to talk to the owner,” who was upstairs, Gonzalez said. 
 
 But the man instead turned back toward the original workers. 
 
 “I see him looking nervous,” Chantes said. “He’s looking behind his back like someone is looking for him.” 
 
 Chantes then watched as Waithe pulled a gun out of a black bag and aimed it at his friend, Oscar. 
 
 “Oscar said, ‘Hey, hey, what’s happening?’ And he just shot him,” Chantes said. “I ran and started yelling, ‘Everyone get out, get out.’ ” 
 
 Waithe fired his gun at least five times, also hitting welder Armando Tapia, 66. Tapia’s son, Armando Jr., also works at C&A and was nearby when his father was shot. 
 
 “He couldn’t run to him,” said worker Dzmitry Tabakin, 28. 
 
 Fernando Fernandez, 49, who works at TransCare, a medical transportation company across the street, saw Ramirez run out of the building and collapse on 13th Street. 
 
 “He wanted people to come help him,” Fernandez said. “He asked us to come and then he just fell. He was bleeding from his stomach.” 
 
 Ramirez was in critical condition at Lutheran Medical Center. Tapia was stable at Lutheran. 
 
 Waithe barricaded himself into an office, where he sat on the desk with a gun to his head for hours. 
 
 NYPD negotiator Lt. Jack Cambria had a “positive” conversation with Waithe behind a bulletproof shield — and even got him to give up his car keys and a homemade bomb-like device. 
 
 “We engaged in dialogue and then, unprovoked, he shot himself,” Cambria said. 
 
 Waithe has a criminal history dating back four decades, including assault, criminal possession of marijuana and resisting arrest. 
 
 The shooter’s mother was stunned by his violent outburst. 
 
 “I don’t know what drove him to this,” she told The Post at her Brooklyn apartment. “It hasn’t sunk in yet. I don’t know how I feel. My son is dead.” 
 
 Additional reporting by Larry Celonaand Frank Rosario 

 Two people were shot inside an iron shop in Brooklyn late Monday morning, after which the gunman engaged in a standoff with officers before eventually taking his own life, according to police.The scene played out on 13th Street and 2nd Avenue in Gowanus, where gunshots rang out just after 11:15 a.m.With a handshake and few quick kind words the victim's coworkers surrounded his son, wishing Armando Tapia a speedy recovery.His son was too distraught to talk, but let a family friend tell Eyewitness News they're still waiting to hear news from doctors about the Mexican immigrant's condition.Tapia and a coworker were shot inside C & A Iron Works in Gowanus, Brooklyn.The gunman walked in looking for a job, and when they tried to help, he pulled out a gun and shot them."When I saw the gun I didn't want to talk to this guy. I just wanted to escape," said Demetrie Tabakin, a witness.Tabakin says they all ran out of the building.The 54-year-old suspect then barricaded himself inside, fortunately not taking any hostages."About 45 minutes of dialogue and unprovoked, he just shot himself. We thought we had a positive dialogue but he just made a decision and pulled the trigger," said Lt. Jack Cambria, of the hostage negotiation team and commanding officer.Several blocks were shut down and some nearby buildings were evacuated.Investigators recovered a shotgun in his car and a crude makeshift device that was not dangerous.It's a bizarre case in the heavily industrial area that police are still trying to understand.The suspect had six prior arrests. The most recent was in 1995 for assault.
– A man applying at a Brooklyn iron shop today was denied the job—and his reaction was to open fire, police sources and witnesses tell the New York Post. The unidentified man pulled a gun out of his bag around 11am, a C&A Iron Works employee says, and immediately shot another worker. Other workers didn't realize at first what was going on—"We work with steel, so there are loud bangs all the time," one explains—and the suspect is believed to have fired at least eight shots in 10 minutes. Few details are available; according to WABC, the suspect is still barricaded inside the shop, but is not believed to have any hostages.