MINNEAPOLIS (WCCO) — A second person has died in a Granite Falls, Minn. shooting, according to police.

Nearly a week after his girlfriend was murdered, 28-year-old Chris Panitzke of Redwood Falls died from his injuries.

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Panitzke and his girlfriend, Kara Monson, were both shot last Monday at her home in Granite Falls. Monson was dead at the scene. Panitzke died Sunday afternoon.

Police identified 28-year-old Andrew Dikken of Sacred Heart, Minn. as a person of interest in the case. He had a past relationship with Monson and police want to question him.

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Last week, authorities found Dikken’s truck in a remote area between the towns of Belview and Sacred Heart.

Monson’s cousins said Dikken and Monson dated for years, in fact, they said Dikken was a close family friend. They never expected to hear his name in connection with the murder of their family member.

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The BCA said he may be armed and dangerous.