HARRISBURG (AP) — Pennsylvania’s attorney general has abruptly canceled a news conference at which he was apparently poised to announce criminal charges against the developer of the troubled Mariner East pipeline project. Attorney General Josh Shapiro had scheduled an event at Marsh Creek State Park in Downingtown, where Sunoco Pipeline LP spilled more than 8,000 gallons of drilling fluid last year. The spill, during construction of the Mariner East 2 pipeline, fouled wetlands, a stream and part of a 535-acre lake. Shapiro’s office says it received “new information” on Monday morning, forcing a postponement. The state’s top prosecutor isn’t saying more.