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FT. MYERS (CBSMiami/AP) — Three patients remain in the hospital Tuesday following a deadly mass shooting at a Fort Myers nightclub.

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Two of the patients remain in critical condition and one in fair condition as of Tuesday morning. Two others were killed and 17 others, in total, were wounded when gunfire erupted on teen night at Club Blu early Monday morning.

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Authorities say they have three persons of interest in custody and they are looking for more. They have not released a motive, but they have ruled out terrorism.

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Meantime, state records show this wasn’t the first time that violence had broken out at that nightclub.

Files released late Monday by the Department of Business and Professional Regulation show that there were two separate shootings just outside Club Blu on the same night in May 2015. Two men were each shot in the leg.

Although detectives found gun casings in the parking lot, the two men who were shot told police they did not want to press charges.

Beer posters still hung in its windows Monday, but Club Blu’s alcohol license was revoked on June 7th of this year. The club owner was supposed to be operating a restaurant where the majority of sales came from food and nonalcoholic beverages, but regulators said they couldn’t tell that from business records.

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