Police issue arrest warrant for suspect in Brown University attack, sources say

Police issue arrest warrant for suspect in Brown University attack where two students were killed and nine others injured. Investigators are seeking public tips and looking into a possible link with the murder of an MIT professor. Authorities are searching for the suspect and a rental car believed to be connected to the crimes, with a $50,000 reward offered for information leading to the suspect's arrest. The investigation is ongoing as authorities continue to seek leads and information in Providence, Rhode Island.