Autopsy reports on two U.S. security officers say they died of respiratory failure . Further forensic analysis will be carried out to establish if the two men , Jeffrey Reynolds and Mark Kennedy , had consumed a substance that may have brought on these events , a police statement said . They may also have suffered heart attacks , a police report says . The bodies of the two men were found a week ago on the container ship Maersk America . Police said ` ` ' suspicion of drug use '' as syringe , traces of heroin were found .
Autopsy reports on two U.S. security officers say they died of respiratory failure . They may also have suffered heart attacks , a police report says . The bodies of the two men were found a week ago on the container ship Maersk America . Police said ` ` ' suspicion of drug use '' as syringe , traces of heroin were found .