Six months after a Penn State student was found stabbed to death in his apartment, officials said they are still awaiting evidence analysis before proceeding in the investigation.

Police said a family member found Langston Carraway, 110 Northbrook Lane, without a pulse on the morning of June 5.

The next day, his death was ruled a homicide by Centre County Coroner Scott Sayers, who said Carraway died of "massive blood loss as a result of stabbing."

Evidence was sent to forensic laboratories at the end of September and is still being analyzed for possible leads, Centre County District Attorney Michael Madeira said. He would not specify what pieces of evidence were submitted for analysis.

"We are continuing to evaluate the evidence, and when that's done, I'm confident that we'll be making an arrest," he said. "I think it will take some time longer."

Former Penn State football player LaVon Chisley has been and remains a "person of interest" in the investigation, Madeira said.

Chisley, who lived with Carraway's brothers until the day before the homicide, was first targeted as a person of interest when he left the Pennsylvania area soon after Carraway's death and didn't contact the family or attend the funeral, Madeira said in a July 24 Daily Collegian article.

Police went looking for Chisley at his ex-girlfriend's apartment in June, but instead found drug paraphernalia -- specifically a scale -- that his ex-girlfriend claimed belonged to Chisley.

A warrant for Chisley's arrest on drug-related charges was filed on June 22 and he was detained in Maryland until his charges were dropped at the end of October.

Chisley's attorney, Karen Muir, said at an October hearing that Carraway was also involved in drugs and the scale could have been his.

Madiera said Chisley remained responsible for the scale because he was in possession of it at the time of the charge.

Madeira would not confirm if Chisley was questioned about Carraway's murder during his detainment.

"He is still someone we are looking at," he said. "But we are following the evidence where it leads us."

Madeira would not confirm whether Chisley is the only person of interest in this investigation.