WALTHAM, MASS. (WHDH) - Family, friends and hundreds of police officers lined up in Waltham Thursday, attending the wake of the Waltham police officer who<a class="excerpt-read-more" href="https://whdh.com/news/family-friends-hundreds-of-police-officers-attend-wake-for-fallen-waltham-police-officer-paul-tracey/">Read More</a>