Sadhu Rajbhar, who is the main suspect of the murder case, was the last man to have contacted Hema.
Shivkumar Rajbhar told police that he and four others eliminated the duo in Mumbai after Hema defaulted on a payment for an idol made by his employer, Vidyadhar alias Vidya, a metal fabrication artist who is missing and is prime suspect.
The prime suspect in the Mumbai double murder case of well-known painter Hema Upadhaya and her lawyer was today detained by Uttar Pradesh Special Task Force in Varanasi.