ORLANDO -- The Sea World Killer Whale that’s taken the lives of three people is back performing.

Last February, Tilikum, the whale pulled Sea World trainer, 40 year old Dawn Brancheaus, into the water by her pony tail and brutally held her at the bottom of the pool until she drowned.  Onlookers at the park in Orlando, Florida watched as the trainer died.

The investigation into Brancheaus’ death revealed that Tilikum, had killed before.

According to a PBS online report, this whale and two others attacked trainer, Keltie Byrne, when she fell into the pool at Sealand of the Pacific, in Canada. 

Also, CBS News reports in 1999, 27 year old Daniel Dukes made his way into the Orlando park after hours. His body was found naked and scratched the next day in the whale’s pool.

An article NBC Today Show's website states that OSHA had deemed the whale unfit to perform.  The report states, “An investigation by the Occupational Safety and Health Administration, the federal agency charged with overseeing workplace safety, found that SeaWorld had exposed its workers ‘to struck-by and drowning hazards interacting with killer whales,’ and fined the park $75,000. But park administrators have disputed OSHA’s findings, and last week, they returned Tilikum to the pool.” 

Sea World has made some modifications since the February 2010 drowning. Trainers no longer swim in the pool with the whale, and new equipment is being created that, in an emergency, sends pulses that push the whale and people to the surface of the water.

We want to know how you feel. Do you think Tilikum the Killer Whale should be back to performing? Leave us your comments below.