 This undated photo provided Tuesday March 7, 2017 by the Thoiry zoo shows the rhinoceros Vince, center, at the zoo, west of Paris. A zoo director says a five-year-old Rhinoceros living in the wildlife park he runs near Paris has been shot three times in the head by poachers who stole its ivory horn.... (Associated Press) 
 
 This undated photo provided Tuesday March 7, 2017 by the Thoiry zoo shows the rhinoceros Vince, center, at the zoo, west of Paris. Thierry Duguet told The Associated Press that poachers broke into the Thoiry Zoo overnight and used a chain saw to remove the horn from the rhino named Vince. Play Facebook 
 
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 Zookeepers discovered the five-year-old's carcass in the rhinoceros' enclosure. Duguet said police were investigating and confirmed that no arrests had been made by Tuesday. The Thoiry Zoo is famous for its safari park that can only be explored from inside a vehicle. According to Le Parisien newspaper, a rhinoceros horn can be sold for up to 40,000 euros on the black market because of a strong demand linked to the belief that the horns have aphrodisiac powers.
– In what authorities say is a brazen first, poachers busted into an EU zoo and attacked a live animal. NBC News reports on the slaying of Vince, a rhinoceros who was found dead in his enclosure Tuesday morning by his keepers after perps broke into France's Thoiry Zoo overnight, put three bullets into the animal's head, then chainsawed his horn off, presumably to sell on the black market, the zoo's director tells the AP. Vince was a 4-year-old African rhino, a species that's seen a record decline in numbers of late due to poachers, per the World Wildlife Fund. Hacking marks on Vince's second horn suggest the suspect or suspects tried to cut off that one as well; they may not have had time to finish the job, or the tools they were using may not have worked on that horn. The Independent reports that rhino horns can command more than $35,000 when sold underground. "The whole staff is extremely shocked," the zoo wrote in a Tuesday morning Facebook post, which adds that the other two rhinos in the enclosure, 37-year-old Gracie and 5-year-old Bruno, "escaped the massacre." (One of the world's last "big tusker" elephants was killed this week.)