Some TMNT stuff really isn't for little kids.

In the IDW continuity, Mifor was an Utrom archival custodian and supervisor on Utrominon prior to the Triceratons' rebellion against the Utrom Empire. Shortly after a battle, Commander Zom asked Mifor to allow her a few more minutes to examine the names of the recently fallen Triceratons, which Mifor reluctantly agreed to.

After briefly leaving, he returned to find Zom using the supervisor's terminal, which he declared was considered treason. As he prepared to call security, she shot him, killing him instantly.