Short answers, pulled from the story.
The machine infernale was a large wine cask packed with gunpowder, flammable materials, and bullets, loaded onto a cart and detonated by a fuse. The name came from a device first called la macchina infernale, built by an Italian engineer during the Siege of Antwerp in 1585.
Seven royalist Breton Chouans planned the attack, led by Georges Cadoudal, born in 1771. Cadoudal assigned Pierre Robinault de Saint-Regeant and Pierre Picot de Limoëlan to carry out the killing, and they recruited bomb-maker Francois-Joseph Carbon to build the device.
The exact death toll is disputed among scholars. Estimates range from two killed with six gravely wounded, to nine dead and twenty-six injured, to roughly a dozen killed and twenty-eight wounded. Among the dead was a fourteen-year-old girl named Marianne Peusol, who had been paid twelve sous to hold the horse pulling the bomb cart.
Freud described Napoleon as an extremely sound sleeper who had been asleep in his carriage when the bomb went off. Freud argued the explosion was woven into an existing dream about Napoleon's defeat at the Tagliamento River, causing Napoleon to wake crying "Nous sommes mines!" Freud called this an alarm-clock dream, one that incorporates external sounds to allow the dreamer to keep sleeping.
Napoleon blamed Jacobin extremists rather than the actual royalist plotters, despite evidence from Police Minister Fouche pointing to the Chouans. On the 14th of Nivose Year IX, the 4th of January 1801, Napoleon and his fellow Consuls exiled 130 Jacobins from France without trial. Several innocent men, including Chevalier and Metge, were executed on his orders.
Limoëlan escaped to the United States after the failed assassination. He had expressed guilt over the death of Marianne Peusol, the girl who held the bomb cart's horse. He was ordained a Catholic priest in 1812 and died in 1826.