KANPUR: The 2022 will of 63-year-old pharmaceutical trader Vineet Minocha, which made his wife, son and daughter stakeholders in his property but excluded his daughter-in-law Shalu, is among the key aspects being examined by police in his murder case.Investigators are probing whether the will could have prompted the alleged conspiracy.Police on Monday recorded the statements of Shalu (30), who is currently in jail, and former servant Vishal Gautam after obtaining court permission to question them.While Shalu denied involvement and remained silent on several questions, Vishal reiterated that he carried out the killing at her behest, police said.Over 300 calls between Subrat, Vishal under scannerInvestigators are closely examining the communication between Vineet’s son Subrat and Vishal, after analysing call detail records of seven mobile numbers. More than 300 conversations were recorded between the two, the highest among the numbers examined, increasing police suspicion of Subrat.Police commissioner Raghubir Lal said around 1,000 pages of call detail records had been obtained for two numbers belonging to Vishal, three to Subrat and two to Shalu.The records cover the period from May 1 until the night of the murder.Investigators are now examining the calls made by the suspects before and after the murder, including their duration and the identities and relationships of the people contacted.The police are also looking into Subrat’s links with Vishal as part of the investigation. Investigating officer and Kalyanpur police station in-charge Keshav Tiwari questioned Shalu and Vishal in jail after securing court permission.Police plan to seek custody remand for Shalu and Vishal and question the two face-to-face with Subrat.Vishal got new SIM, stopped using old number same dayAccording to Lal, Vishal obtained a new SIM on September 3, two days before the murder, and stopped using his previous number the same day. He later made calls to both Shalu and Subrat.Vishal had earlier told police that Shalu instructed him to name Subrat if he was caught, police said.After the murder, Vishal and his aide Rajkishore allegedly escaped from Ratan Orbit Apartment in Indira Nagar by scaling a wall and later booked a taxi.The two also called a friend five times. Investigators are now collecting information about the friend to establish whether Vishal disclosed details of the murder or sought assistance.Police are also examining Vineet’s will alongside the call records and the suspects’ contacts as they investigate the alleged conspiracy.