Iranian President Mahmoud Ahmadinejad said the development of capitalistic countries has reached a dead-end and killings is the only way out for them.“Capitalism lacks logic and it resorts to weapons in order to kill and destroy. Murder is the only thing left for capitalism today,” Ahmadinejad said speaking in the Cuban capital of Havana.“Why does the United States punish Iranian, Cuban and Latin American people? Did we attack anyone? Did we ever want more than we are allowed to? Never,” he said.Ahmadinejad arrived in Havana on Wednesday afternoon as part of his Latin American tour. He has already paid visits to Venezuela and Nicaragua and will set off from Cuba to Ecuador on Thursday.