Aiello v. Massachusetts

How later courts describe this case

• reviewing, after conviction, claims of prejudice, pretrial publicity, and hostility of grand jury
• defining provocation in part as “sudden transport of passion or heat of blood”
• where there is more than one proximate cause, “liability ... [is not required to] be related to any theory of joint liability”
• provocation evidence must show that reasonable person “would not have ‘cooled off by the time of the homicide”
• availability of unprejudiced petit jury at trial obviates need for appellate review of grand jury
• "Simply because a witness alters some portion of his testimony at the time of trial is not a sufficient reason to conclude that the new testimony is false, or that the Commonwealth knew or had reason to know that it was false"