Three suspects were arrested in connection to a mass shooting at a Sweet 16 party in Dadeville, Alabama. The shooting left four dead: Corbin Dahmontrey Holston, 23; Philstavious Dowdell, 18; Marsiah Emmanuel Collins, 19; Shaunkivia Nicole Smith, 17. Law enforcement confirmed it also left 32 people injured, including four still in critical condition.

The suspects were arrested on Tuesday night, according to Sgt. Jeremy Burkett of the Alabama Law Enforcement Agency. Ty Reik McCullough, 17, and Travis McCullough, 16, were identified as two brothers from Tuskegee, Alabama.

A 20-year-old man, Wilson LaMar Hill Jr, was also arrested on Wednesday, law enforcement said, according to CBS.

The three suspects were charged with four counts of reckless murder. Additional charges are set to be filed against them. The teenage suspects are being charged as adults, District Attorney Mike Segrest said during a press conference.

“We’re going to make sure every one of those victims has justice and not just the deceased,” he said.

“Make no mistake: This is Alabama, and when you pull out a gun and you start shooting people, we’re going to put you in jail,” Burkett said.

Burkett added that a motive for the shooting has been determined but that details will not be shared with the public at this time, reported The Independent.

“Please understand, with the violence that went on and the magnitude of what happened, we are absolutely still in the early stages of the investigation,” he said. “This is the beginning, this is not the end. There is a tremendous amount of work that is yet to be done.”

Law enforcement urged people present at the party to reach out to the authorities. They also asked anyone with information, including videos, to come forward.

“We need you to come forward for these families, for these victims,” Burkett said.

A bond hearing will be held for the suspects within the next 72 hours. Prosecutors are expected to ask a judge to hold them without bail, according to The Independent.