the species. Critics viewed the proposed exhibit as an exploitative way to attract casino patrons. Ultimately, the resort did not gain approval to import the animals. In 2003, the resort added a convention center and a second hotel tower. Two years later, the resort was bought by MGM Mirage as part of its acquisition of Mandalay Resort Group. In 2006, Mandalay Bay was investigated by the U.S. Department of Justice over complaints that the resort failed to comply with the Americans with Disabilities Act of 1990. The property eventually spent $20 million to correct the entry doors of 3,000 hotel rooms, as they were deemed too narrow. The resort's first major renovation began in late 2012, and continued into the next year, improving various areas of the property. Stunt performer Andy Lewis achieved a new slacklining record at Mandalay Bay in 2013, walking 360 feet across a loose rope situated 480 feet above the property. In January 2020, Mandalay Bay was named the pre- and post-game venue for the Las Vegas Raiders, a football team which plays at the Allegiant Stadium directly west of the resort. That month, MGM Resorts also announced that it would sell Mandalay Bay to a joint venture consisting of MGM Growth Properties and The Blackstone Group. MGM would own 50.1 percent of the joint venture, and Blackstone would own the remainder. Mandalay Bay would be leased to MGM Resorts, which would continue to operate the resort. The deal was finalized in February 2020. Vici Properties bought MGM Growth in April 2022, and then bought out Blackstone's stake in Mandalay Bay in January 2023. 2017 mass shooting On October 1, 2017, gunman Stephen Paddock opened fire from his room on the hotel's 32nd floor. He targeted concertgoers attending a music festival, located diagonally across from the resort. He killed 60 people and wounded 867 others, before killing himself as authorities approached his room. The incident is the deadliest mass shooting by a lone gunman in U.S. history. Mandalay Bay remained open following the shooting. Hospitality experts believed the massacre would have only a minimal impact on the resort's revenue. Several hundred workers, out of 7,400, were laid off as a result of decreased visitation due to the shooting. MGM had also paused its marketing of the resort after the incident, which contributed to profit losses. Finances gradually improved, with a near-full recovery in 2019. Resort security