Rape suspect caught in the act, police say

Police credit an alert witness with making the 911 call that led to the arrest of a man accused of forcing a disabled woman into a van and raping her in a Commuter Rail parking lot. Subscribe to WCVB on YouTube now for more: http://bit.ly/1e8lAMZ Get more Boston news: http://www.wcvb.com Like us: https://www.facebook.com/wcvb5 Follow us: https://twitter.com/WCVB Instagram: https://www.instagram.com/wcvb5/