Three Grenadian prisoners have been charged with murder in the presumed deaths of an American couple who authorities said went missing after their catamaran was hijacked in the Caribbean following a jailbreak.

Ron Mitchell, 30, Atiba Stanisclaus, 25, and Trevon Robertson, 23, face two counts of capital murder in Grenada over the deaths of Ralph Hendry and Kathleen Brandel, the Royal Grenada Police Force announced Thursday.

The couple were presumed to have been thrown overboard after the three men took over the moored boat on Feb. 19, one day after the jailbreak. The men were recaptured after sailing the catamaran to St. Vincent and the Grenadines, police have said.