07/23/2015 12:56 EDT | Updated 07/23/2016 05:59 EDT

Halifax mall shooting plot case's preliminary hearing ends

The Crown will bring a "massive" amount of evidence against two people accused of plotting a mass shooting in Halifax on Valentine's Day.

"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.

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 likely be heard by a 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.