Lancaster pleaded guilty to murder in connection with the death of David Hannauer. (Brianna Soukup/Staff Photographer)PORTLAND —A former resident of the YMCA’s men’s dormitory program on Forest Avenue has pleaded guilty to murder in connection with the death of another man living there last year. Related Man killed at Portland YMCA had a love of musicHannauer’s family described him last year as a “free soul” who grew up in a musically inclined household in New Jersey. Lancaster pleaded guilty under an agreement with prosecutors to avoid a stricter sentence. Lancaster’s attorney Randall Bates said his client has suffered mental health issues “his entire life” and endured a difficult childhood.