Piracy for robbery Robbery and ransom was the motive Causation .

The object of the plot was to rob wealthy passengers and hold Defending them for ransom .

They speculate Coming_to_believe that the Zetas may have forcibly recruited Becoming_a_member the passengers as foot soldiers for the organization , intending to hold Hold them for ransom Surrendering or extort Kidnapping them before they crossed Motion_directional into the US .

After plundering Robbery and occupying Control the city , the Vikings withdrew Escaping when they had been paid Commerce_pay a ransom of 7,000 French livres [ ] of silver and gold from Charles the Bald .

In the immediate aftermath , `` Der Spiegel '' speculated Coming_to_believe that funding had been provided Supply by some of the $ 5 million ransom paid Commerce_pay by the West German government in exchange Exchange for the hostages of hijacked Terrorism Lufthansa Flight 649 in February 1972 .

The cause of the U.S. participation was pirates from the Barbary States seizing Committing_crime American merchant ships and holding Hold the crews for ransom , demanding Request the U.S. pay Commerce_pay tribute to the Barbary rulers .

If they failed to pay Commerce_pay , the pirates would attack Attack the ship , take Removing their goods , and often enslave Conquering crew members or hold Hold them ransom .

Fifteen leagues from Matanzas , Cuba , a large band of pirates captured Conquering several vessels and held Conquering them for ransom .

The children were kidnapped Kidnapping for ransom but , on learning Education_teaching their father was a naval officer , both were killed Killing .