The New York Times.The pipelike device intended to reveal the gender of the baby 28-year-old Christopher Pekny and his girlfriend were having went off unexpectedly, not only killing him but injuring his 27-year-old brother Michael Pekny.A mason who was also a “gifted mechanic,” according to his older brother Peter Pekny, said that his brother “was really looking forward to starting a family.”"He was really starting to settle down and grow up,” Peter Pekny said.The Pekny family, well-known in their community, owns the Robin Hood Diner in Liberty, NY in the Catskills.A statement on the diner’s Facebook page reads: “We appreciate the overwhelming display of love and support that you all have shown.