Alivia Kail, 19, has been missing since March 5 after police said she left for a trip to Florida with her boyfriend, Alex Lorenzi.
Lorenzi appeared in court on Tuesday and was ordered to stand trial on gun and drug charges that are not related to Kail's disappearance.
Detectives said they executed a search warrant at Lorenzi's home in Pittsburgh's Esplen neighborhood and found bags of marijuana, packaging for drugs, records of drug sales and a stolen handgun.
Prosecutors also told the court that police found shell casings in Lorenzi's garage, according to Channel 11's news exchange partners at TribLIVE.
So far, Lorenzi has not been charged in the case.
Previous Stories: April 1, 2011: 2nd Man Questioned In West Mifflin Teen's Disappearance March 29, 2011: Woman, 19, Missing; Police Say BF Not Cooperating