Vikram Prasad Singh, an ex-armyman and his wife Neelam were shot dead by their son while they were asleep, Deputy Superintent of Police Ajit Kumar said.
Neelam was the step mother of the accused.
Property dispute was the motive behind the couple's murder, the DSP said.
The accused also nursed a grudge against his father for allegedly beating his mother to death, the DSP said adding that the son, who then a 5-year-old boy, was an eyewitness to it.
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