Three firefighters were killed and one critically injured from a partial building collapse while battling a fire in a vacant rowhome in west Baltimore early Monday, officials said. In a news conference held by Mayor Brandon Scott and the Baltimore City Fire Department, Scott released the names of the victims from the early morning rowhome fire. "Today, Baltimore has lost three of the bravest among us: Lt Paul Butrim, firefighter/paramedic Kelsey Sadler and EMT/firefighter Kenny Lacayo," Scott said. "All made the ultimate sacrifice. For that, Baltimore owes them the deepest gratitude and respect. A fourth EMT/firefighter John McMaster remains at the hospital in critical but stable condition." Baltimore City Fire Department Chief Niles R. Ford honored the bravery of his first responders and firefighters.