An autopsy has failed to pinpoint why the boyfriend of Glee star Becca Tobin died at a Philadelphia hotel.

Police say they were called to the Hotel Monaco on Thursday afternoon and soon pronounced 31-year-old Matt Bendik dead.

The city medical examiner's office says an autopsy Friday failed to determine how he died. More studies will be done to try to determine both the cause and manner of death.

Tobin's manager, Ricky Rollins of Schumacher Management, says that "with respect to both the Bendik and Tobin families, there is no comment at this time."

The show's executive music producer, Adam Anders, joined growing online support for the actress by tweeting, "Praying for @becbecbobec."

Glee star Cory Monteith died of an accidental alcohol and drug overdose in a Canadian hotel last July. Tobin joined the Glee cast in 2012.

With files from CBC News