|This article contains information from the unofficial English translation patch for Gyakuten Kenji 2.|
Owing to the lack of an official translation of the Japan-only Gyakuten Kenji 2, the information and names in this article come from the unofficial English translation patch known as Ace Attorney Investigations: Miles Edgeworth: Prosecutor's Path. More information on this can be found here.
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- Main article: Turnabout Memories
While they were both studying at Ivy University, Dahlia Hawthorne attempted to kill Phoenix Wright with his own bottle of Coldkiller X by mixing in some poison she had stolen from the pharmaceutical department. Her reason for doing so was in order to regain her bottle necklace, which was evidence from her poisoning of Diego Armando.
- The medicine is known as "Coldkiller Z" in the Japanese versions of Phoenix Wright: Ace Attorney: Trials and Tribulations and Gyakuten Kenji 2.