<Tr> <Td colspan="8"> Secrets arise when Gibbs ' former mother - in - law Joanne Fielding ( Gena Rowlands ) surfaces as a witness in a murder investigation . At first , the crime appears to be a simple robbery gone awry , but deeper investigation reveals that there 's more to the story . The victim , a Navy captain , was involved with the same drug cartel that killed Gibbs ' first wife and child . His mother - in - law eventually admits that she killed the captain in revenge for her daughter and granddaughter 's death , and Gibbs ' tells her he murdered their real killer as well . Despite the confession , Gibbs can not bring himself to arrest his own mother - in - law . He convinces Allison Hart to defend her , and then purposely makes crucial legal mistakes on arresting her ( not reading her her rights , questioning her without legal counsel ) so that Hart is forced to prevent the arrest . Vance later informs the team that the case is closed without giving an explanation . </Td> </Tr>
<Tr> <Td colspan="8"> Secrets arise when Gibbs ' former mother - in - law Joanne Fielding ( Gena Rowlands ) surfaces as a witness in a murder investigation . At first , the crime appears to be a simple robbery gone awry , but deeper investigation reveals that there 's more to the story . The victim , a Navy captain , was involved with the same drug cartel that killed Gibbs ' first wife and child . His mother - in - law eventually admits that she killed the captain in revenge for her daughter and granddaughter 's death , and Gibbs ' tells her he murdered their real killer as well . Despite the confession , Gibbs can not bring himself to arrest his own mother - in - law . He convinces Allison Hart to defend her , and then purposely makes crucial legal mistakes on arresting her ( not reading her her rights , questioning her without legal counsel ) so that Hart is forced to prevent the arrest . Vance later informs the team that the case is closed without giving an explanation . </Td> </Tr>
who plays gibbs mother in law on ncis
who plays gibbs mother in law on ncis
Gena Rowlands
Gena Rowlands