(Portland, OR)  --  Portland police are trying to determine whether two armed robberies that happened over the weekend are connected.  A person reported being robbed at gunpoint a few minutes after three a.m. Sunday while walking from his car to his house on Southeast 71st Avenue.  Minutes later, two suspects armed with guns broke into the Kilt Irish Pub on Southeast Woodstock Boulevard and robbed the bartender as she was closing.  Police say the descriptions of the suspects in both holdups were similar.