President Joe Biden has paid tribute to two FBI agents were killed and three wounded in a shooting that erupted on Tuesday in a Florida shooting. "Our hearts go out to the families of the FBI special agents," Biden said in the Oval Office. "I was briefed on this tragedy earlier in the day and I know the FBI gathering information how this happened, what happened," he said. "But I can't imagine how these families are feeling today." The agents were hurt when they arrived to search an apartment in a child pornography case, a confrontation that marked one of the bloodiest days in FBI history. The suspect is believed to have killed himself. The violence forced residents in the Fort Lauderdale suburb of Sunrise to huddle inside their homes as a SWAT team stormed the apartment building and police helicopters circled overhead. FBI Director Christopher A. Wray identified the two slain agents as Daniel Alfin and Laura Schwartzenberger, both of whom specialized in investigating crimes against children. Two of the wounded agents were taken to hospitals to be treated and were in stable condition, said Miami FBI Agent Michael D. Leverock. The third did not require hospitalization, Wray said. Based on a preliminary investigation, federal officials believe the suspect fatally shot himself, according to a law enforcement official familiar with the matter. The person cautioned that an official cause of death has not yet been determined and spoke to The Associated Press on condition of anonymity because they were not authorized to discuss the investigation publicly. The FBI agents had come to the apartment complex to serve a federal search warrant in connection with a case involving child pornography and violent crimes against children, according to Leverock and FBI Agents Association President Brian O’Hare. The shootings marked one of the bloodiest days in FBI history in South Florida and among the deadliest nationally as well, according to the FBI website. Schwartzenberger, 43, had been an agent with the FBI since December 2005 and worked in the Miami field office on a squad of agents handling violent crimes against children, according to court records. Her work primarily focused on tracking offenders who sexually exploit children online and investigating other crimes against children. Alfin, 36, who also investigated child exploitation cases, had previously worked at FBI headquarters handling major cases involving violent crimes against children, according to court records. He had a degree in information technology and went through the FBI’s specialized training programs for cybercrimes. He was involved in a major child exploitation investigation dubbed Playpen that resulted in arrests around the world. Subscribe to our YouTube channel: https://bit.ly/2TwO8Gm Bloomberg Quicktake brings you live global news and original shows spanning business, technology, politics and culture. Make sense of the stories changing your business and your world. To watch complete coverage on Bloomberg Quicktake 24/7, visit http://www.bloomberg.com/qt/live, or watch on Apple TV, Roku, Samsung Smart TV, Fire TV and Android TV on the Bloomberg app. Have a story to tell? Fill out this survey for a chance to have it featured on Bloomberg Quicktake: https://cor.us/surveys/27AF30 Connect with us on… YouTube: https://www.youtube.com/user/Bloomberg Breaking News on YouTube: https://www.youtube.com/c/BloombergQuickTakeNews Twitter: https://twitter.com/quicktake Facebook: https://www.facebook.com/quicktake Instagram: https://www.instagram.com/quicktake