A suspect, a misspelled name of a village in Bihar’s Nalanda district: This was all a Delhi Police Crime Branch team had when they reopened a 40-year-old murder case in late March and pulled out a copy of the FIR from the records. From its damaged pages, they managed to piece together the events of October 19, 1986. The man they were looking for, Chander Shekhar Prasad, was 44 years old then. He was a cardboard businessman. Before entering the business, he’d worked as a compositor at a prominent English newspaper in Delhi . Prasad lived with his family — his wife, two sons aged 10 and 8, and a three-year-old daughter — in East Delhi’s Shakarpur School Block. Police said he’d also employed a 24*7 helper, Luv Kumar, paying him Rs 350 a month, a substantial amount at the time. On that evening of October 19, Prasad, along with two aides, allegedly smashed his wife’s head and face with a brick — he suspected she was having an affair.…