> A ballistic test performed in 1961 suggested that the pistol found on Sacco was used to commit the murders,[7] though later commentators have questioned its reliability and conclusiveness, given questions about the chain of custody and possible manipulation of evidence.[8]

they found one guy who disputed it, and the author convincingly refutes it immediately in the same article. yet another wikipedia citation that when I read it suggests the opposite of what wikipedia implies. nearly every time.