The disturbed attacker walked into the NY Deli & Mini Market Corp. on Hegeman Avenue near Van Siclen Avenue just after 3 p.m., and workers -- including the victim -- asked him to leave, law enforcement sources said. 

A 23-year-old man – who may have been armed with a gun – was fatally run over by his ex-girlfriend's new boyfriend in a love triangle clash in the middle of a Queens street Thursday night, according to the police.

The man, who has not been identified pending family notification, was found stabbed multiple times in his legs around 4 a.m. inside an apartment on West 138th Street near Frederick Douglass Boulevard, cops said. 

Most of the damage was relegated to the 33rd flood, where Shane Tamura accidentally rode the elevator while searching for the NFL headquarters.