Jarrod Ramos

Struck by tragedy when a gunman with a grudge stormed their newsroom, journalists at a US community newspaper pulled together to put out Friday's edition in tribute to their five murdered colleagues, targeted in the country's latest mass shooting.

Years of threats and hateful posts on social media, a conviction for harassment and a lonely life: investigators were Friday piecing together what drove a 38-year-old suburbanite to murder five people at a community newspaper in Maryland.

The 38-year-old man suspected of killing five people at the offices of a Maryland newspaper group on Thursday had a long-running feud with Capital Gazette, attacking the Annapolis-based family of publications in the courts and on social media.

Struck by tragedy when a gunman with a grudge stormed their newsroom, journalists at a US community newspaper pulled together to put out Friday's edition in tribute to their five murdered colleagues, targeted in the country's latest mass shooting.

Years of threats and hateful posts on social media, a conviction for harassment and a lonely life: investigators were Friday piecing together what drove a 38-year-old suburbanite to murder five people at a community newspaper in Maryland.

The 38-year-old man suspected of killing five people at the offices of a Maryland newspaper group on Thursday had a long-running feud with Capital Gazette, attacking the Annapolis-based family of publications in the courts and on social media.