A grand jury in Queens drops all charges against a homeless man accused of stabbing a teen to death at an Internet Cafe.

19-year-old Yangpu Fan was stabbed in the chest on the night of April 26.

It happened at the K and D Internet Cafe on Union Street and 39th Avenue in Flushing.

His friend took him to a hospital where he died.

Police say it all happened when Fan asked 51-year-old Paul Kim to move from his seat so he could sit next to his friends.

They say Kim refused.

Investigators say Fan left and came back with more people.

That's when the fight started, and Fan was stabbed.

Kim had been facing manslaughter and criminal weapons charges.

It's not clear why charges were dropped.