BROOKLYN - A man was found stabbed to death inside the bedroom of his Lefferts Avenue apartment today, according to police. Authorities say the victim is 53-year-old Melvin Vargas. People in the area say he was known as "Rocky" around the neighborhood that he lived in for more than 30 years. Distraught family members say they're in shock. A brother who lives downstairs says he heard some commotion last night, but figured it was just other neighbors arguing. Family members say the victim's room shows signs of a struggle. Cops are now checking area hospitals because they believe the suspect may have hurt himself during the crime. Investigators are also reviewing surveillance video taken from cameras outside of the building.