MIAMI – Two men were sentenced yesterday to 10 years in prison – well above federal sentencing guidelines – for organizing a Cuban immigrant smuggling trip that ended when their speedboat capsized and a 6-year-old boy drowned.

U.S. District Judge K.Michael Moore said he was imposing the long sentence because of a marked increase in dangerous pursuits between American authorities and smugglers on the open ocean. Moore also said the two men should pay an extra penalty for playing a role in the boy’s death.

Sentences imposed under federal guidelines are “not providing an adequate deterrent for this kind of criminal conduct,” Judge Moore said.

Alexander Gil Rodriguez, 25, and Luis Manuel Taboada Cabrera, 28, had faced a maximum of just under six years in prison under the advisory guidelines, which included an enhancement of 2 1/2 years for the death of 6-year-old Julian Villasuso on October 12, about 45 miles south of Key West.

Their boat carried 29 migrants, including Julian and his parents, and the two smugglers who pleaded guilty in November to migrant smuggling conspiracy charges.

Their attorney, Steven Amster, argued that the lower penalty was sufficient punishment, in part because the smuggling trip was not organized for profit.

Taboada apologized to the judge and accepted responsibility for his actions.