Drank himself to death: Charles Terreni Jr had a blood alcohol level of .375 when he died . An 18-year-old University of Carolina freshman who was found dead after a St Patrick's Day party died of alcohol poisoning in a 'tragic and totally preventable death', a coroner has ruled. Charles Terreni Jr was four times over the legal alcohol limit when he died, an autopsy has found. He was found at the Pi Kappa Alpha house in Columbia, not far from campus, around 10:30am on March 18, the morning after an alleged 'kegger' at the house for the annual Irish holiday. Terreni's official blood alcohol reading was .375, according to WISTV. He is the son of Columbia attorney Charles Terreni, a former staff member for then-Lt. Gov. Bob Peeler, a former state Public Service Commissioner and a man involved in legislative redistricting. The death is still under investigation. Circumstances leading up to his death are not clear, but the house was draped in St Patrick's decorations and a beer keg could be seen outside. Neither the fraternity nor the university has explained the situation in detail. However, USC suspended the fraternity in the wake of the death. Neighbors said the house threw a party the night before, and noted the leftover keg Wednesday morning. 'I would say there are three houses there, and I don't know who exactly lives in them, but there's always a frequency of parties going on,' neighbor Mehrdad Vejdani told Fox Carolina. 'At times, there can be a hundred people in that place. Live band in the backyard, which is fine. I mean, some noise, but it doesn't bother us too much.' Scroll down for video . Suspended: The Pi Kappa Alpha house at the University of South Carolina has been suspended, after a brother was found dead in a house Wednesday morning . Rager? Neighbors said the house had a party the night before, on St Patrick's Day. On Wednesday, several stray cups and a keg were seen on the porch, as well as clover decorations . The Columbia Police Department and Richland County Coroner's Office have both labeled the death 'suspicious'. Responding the Terreni's death, the fraternity's national office released a statement saying the USC chapter had been placed on leave pending the investigation. It said: 'The fraternity’s thoughts and prayers are with the family of this young man and the brothers of Xi Chapter'. A spokesman for USC added: 'There are a lot of rumors out there about the circumstances surrounding the death but at this point the matter remains under investigation.' 'While we await further information we are focused on helping our community grieve and heal.' This is the second incident at the fraternity in a week. Last Friday, the University of Connecticut chapter lost recognition for hazing members, providing alcohol to underage students and harassing women. Pi Kappa Alpha was founded in 1868 at the University of Virginia and has now grown to include some 220 groups across the U.S. and Canada. The house has been plagued by controversy before. In November 2012, a 19-year-old student at Northern Illinois University died after a night of heavy drinking. Five frat members were charged with felonies for hazing and the chapter was suspended indefinitely. That same year, the University of Tennessee, Knoxville chapter was suspended indefinitely when a 20-year-old member was hospitalized for reportedly ingesting wine through his anus.
Charles Terreni, 18, was found dead March 18 at a frat house in Columbia .
Terreni was a USC freshman and a member of the Pi Kappa Alpha house .
Coroner identified cause of death as alcohol poisoning .
Toxicology tests showed he had a blood alcohol of .375 .
Neighbors said there was a large party; a beer keg was still visible outside .