Raghunandan Yandamuri was born on February 21, 1986, in Andhra Pradesh, India. Raghunandan later earned an advanced degree in electrical and computer science engineering.

On October 22, 2012, Raghunandan Yandamuri went to the Vennas’ apartment at the Marquis Apartments in King of Prussia. He wore a black hoodie and knocked on the door. Sixty-one-year-old Satyavathi Venna, Saanvi's grandmother, opened the door. Yandamuri pulled out a four-inch knife, trying to take 10-month-old Saanvi Venna. Satyavathi tried to escape to the kitchen, but Yandamuri followed her while still holding the knife.

A struggle ensued. Yandamuri was holding Saanvi when he fell, resulting in Satyavathi's throat being cut. Following this, Saanvi began to cry. To silence her, Yandamuri stuffed a handkerchief in her mouth and then tied a towel around her mouth, accidentally causing her to suffocate. Afterward, Yandamuri searched through the family’s belongings and found Saanvi's jewelry in a blue suitcase.

He then placed Saanvi’s body in the suitcase and left it in the men’s sauna of the apartment gym. Yandamuri returned to his apartment, took a shower, and later threw the suitcase in a dumpster. Some of Saanvi's jewelry was discarded into the Schuylkill River, while he hid other pieces behind a vending machine in his office. Yandamuri also wrote a ransom note asking for $50,000.

The investigation began when police found Satyavathi's body and the ransom note. Initially, there were no suspects, but soon Yandamuri was linked to the crime. After several days, he was interrogated by detectives. At first, he was non-cooperative but eventually he confessed to the murders. Yandamuri was arrested just four days after the crimes.

His trial started on September 25, 2014. The jury heard testimonies and saw evidence connecting Yandamuri to the crime. He maintained that he was innocent and claimed he was coerced into confessing. Despite his claims, the evidence against him was strong, leading to a guilty verdict on all counts. On November 20, 2014, Yandamuri was sentenced to death.

As of 2024, he is on death row at SCI Somerset. His execution was scheduled for February 23, 2018, but it was postponed due to a moratorium on the death penalty in Pennsylvania.