KING OF PRUSSIA A former Montgomery County man whose baby daughter and mother were killed in a King of Prussia apartment complex has filed a wrongful-death lawsuit against the criminal defendant, plus the owners of the complex and the security company.

The civil action was filed last month in Philadelphia Common Pleas Court on behalf of Venkata Venna, the administrator of the estates of his mother, Satyavathi Venna, 61, and Saanvi Venna, his 10-month-old daughter.

Authorities say that in October 2012, Raghunandan Yandamuri, who also lived at the Marquis Apartments, killed the grandmother and granddaughter after botching a kidnap-for-ransom scheme.

The lawsuit names Yandamuri, Metropolitan Properties of America, JEG Associates L.P., Marquis L.P., and U.S. Security Associates as defendants. The first three companies, all with headquarters in Boston, owned and operated the complex at the time, while the fourth was contracted to provide security, the lawsuit said.

The suit accuses all four companies of negligence and recklessness by failing to secure the Vennas' building.

On Monday, attorney Jay L. Edelstein, who represents U.S. Security, filed objections to the civil suit, arguing that the proper place for the lawsuit to be heard was in Montgomery County.

Edelstein and the attorney for Venna, John I. McMahon Jr., who were the only lawyers reached Tuesday, declined to comment on the suit. Yandamuri, 27, is in the Montgomery County Correctional Facility awaiting trial.