Jeff Walls, co-founder, guitarist and songwriter for suburban Atlanta college-rock favorites Guadalcanal Diary, died on Wednesday after battling a very rare form of pulmonary hypertension that only can be cured through a double lung transplant. Murray Attaway, the band’s frontman, announced the news on Facebook.

Jeff Walls, co-founder, guitarist and songwriter for suburban Atlanta college-rock favorites Guadalcanal Diary, has spent the last month in intensive care after being diagnosed with a very rare form of pulmonary hypertension that only can be cured through a double lung transplant. Here’s how you can help.