A key witness began to testify late Wednesday during an emotional day in the murder trial of Karen Read, the Massachusetts woman whose defense claims her Boston police officer boyfriend was beaten by someone else and bitten by a dog before he was left outside to die in a snowstorm.
Subscribe to WCVB on YouTube now for more: http://bit.ly/1e8lAMZ
Get more Boston news: http://www.wcvb.com
Like us: / wcvb5
Follow us: / wcvb
Instagram: / wcvb5