The structure and 2α + 2p breakup of 10 C, the only known Brunnian nucleus, has been studied at 33.3 MeV/nucleon. The breakup kinematics were used to reconstruct the 10 C → 9 B +p, 9 B → 8 Be +p, 8 Be → α + α and 10 C → 6 Be +α, 6 Be → 5 Li +p, 5 Li → α + p decay paths. Proton emission was seen to be favored. The decay of excited states at E x = 4.20, 5.31, and 6.74 MeV was observed. The previously unobserved state at 4.20 MeV may correspond to a J π = 0 + α + 2p + α cluster structure.