As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PIT FLT288 DURING CRUISE, EN ROUTE FROM CLT TO YYZ, THE OUTER PANE OF THE CAPTAIN'S L1 WINDSHIELD SHATTERED. CREW DECLARED AN EMERGENCY AND DIVERTED TO PIT. FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE CAPTAIN'S WINDSHIELD PER JOB CARD J356-11-01. ALSO, REMOVED AND REPLACED L1 WINDSHIELD HEAT CONTROLLER PER MM 30-51-11-4. OPERATIONAL CHECK GOOD.