Marudhu Alaguraj told that he was summoned based on the opinions he made about the case in the media.
She requested police to investigate the case properly and bring the perpetrators, whoever they might be, before the law.
According to sources, Sasikala was asked whether she had any knowledge of the incident, which took place on April 23, 2017.
The special team of police investigating the Kodanad estate heist-cum-murder case will question VK Sasikala, close aide of former chief minister J Jayalalithaa, on Thursday.
In the Kodanad murder-cum-heist case, the special team of Nilgiris district police on Saturday investigated five suspects who were on bail.
Sources said he was summoned by police in connection to ownership of the estate. Earlier, estate manager S Natarajan was also questioned.