India, Jan. 7 -- A former Shark Tank Colombia contestant has been arrested after allegedly murdering two teenage girls with poisoned raspberries. Zulma Guzman Castro, 54, was fished from the Thames River and taken into custody.

Castro was taken into custody in London on Monday, January 5, after being pulled from the freezing river by the Battersea Bridge on December 16, the Daily Mail reported. She had been in a psychiatric hospital since her leap, which happened eight months after she goofed while targeting her ex-lover, one of the girls' fathers.

Castro is being held by UK authorities till she can be extradited to Colombia. She is wanted there for the murders of 14-year-old Ines de Bedout and 13-year-old Emilia Forero in Bogota in Apr...