The two people accused of plotting a mass shooting in Halifax on Valentine's Day will be in court in August to set a trial date.

The Crown will produce a "massive" amount of disclosure against the two accused in the case.

"The social media in particular is voluminous. It's exceptional, although I would note it's becoming less uncommon for cases to have a lot of social media evidence," prosecutor Mark Heerema said. "It is truly massive."

He spoke after a preliminary inquiry wrapped up Thursday morning.

Both 23-year-old Lindsay Kantha Souvannarath of Geneva, Ill., and 21-year-old Randall Steven Shepherd of Halifax are charged with conspiracy to commit murder, conspiracy to commit arson, illegal possession of dangerous weapons and making a threat through social media.

Lindsay Kantha Souvannarath was arrested shortly after arriving in Halifax.

Lindsay Kantha Souvannarath was arrested shortly after arriving in Halifax. (CBC)

The Crown alleges the pair plotted to attack the Halifax Shopping Centre on Valentine's Day with a 19-year-old man, who was found dead in his Halifax home.

None of the charges has been tested in court.

The pair is next due in court Aug. 6 to set a date for their Supreme Court trial, which will be heard by a judge and jury.

"This matter has the potential to be multiple weeks," Heerema said. "The Crown feels we have a strong case to go forward on."

He said they're disclosing hundreds of thousands of pages of information, much of it from social media.

Souvannarath and Shepherd are both remanded into custody and haven't applied for bail.