A Pennsylvania man accused of killing a 10-month-old girl and her grandmother in what prosecutors described as a kidnapping plot gone wrong has been convicted of murder.

Raghunandan Yandamuri (rag-oo-NAHN'-dahn yahn-duh-MOHR'-ee) had served as his own lawyer. The Philadelphia Inquirer reports (http://bit.ly/1t7iDU7) he was expressionless as the verdict against him was read Thursday.

The 27-year-old faces the possibility of the death penalty for the 2012 slayings of Saanvi Venna and grandmother Satayrathi Venna.

Prosecutors argued he hatched the plot to pay for a gambling habit. Evidence against him included DNA and a confession police say led to the baby's body.

He knew the baby's parents from his apartment complex. Like him, they were young technology professionals from India.

He argued two other men forced him at gunpoint to help and said he was pressured into confessing.