Stoughton Fire Captain Robert O’Donnell downplayed what he did at the finish line of the Boston Marathon last April, when he rushed in to help victims of the bombing. “I didn’t do anything special,” he said. “Every guy I worked with would have done the same thing.” O’Donnell, a 33-year veteran of the department, received the department’s Medal of Valor from Fire Chief Mark Dolloff and a proclamation from selectmen at their meeting Tuesday night. O’Donnell is also a registered nurse and a paramedic, with extensive experience working in emergency rooms. At the time the bombs went off, O’Donnell was a spectator at the finish line, waiting for his son, Robert O’Donnell III, to finish. Dolloff said O’Donnell exemplified valor in any and all ways you’d want to call it: courage, bravery, or moxie. “He rushed into the scene that day and helped direct the care of a large number of victims,” said Dolloff, who reviewed news footage and photos of the event in determining the extent of what O’Donnell did. “This is something we need to recognize,” said Dolloff. O’Donnell said the decisions he made that day were in keeping with his personal philosophy. “We are all our brother’s keeper,” he said.