Two suspects arrested for the murder of an LA man who tried to intervene while the pair were allegedly stealing a catalytic converter were in the country illegally, sources said.

A good Samaritan jumped into the Hudson River Saturday morning after seeing someone dive into the dicey waters off Manhattan just moments earlier — but ended up needing to be rescued himself ...

A good Samaritan straphanger who tried to intervene during a fight on a Queens train was pummeled unconscious by the aggressor -- who then picked his pockets before another suspect robbed him, too ...