On the morning of March 28, 2015, 29-year-old Heather Kelso was fatally shot at her mobile home in the Kariotis Mobile Home Park in Bremerton, Washington. The attack also killed a two-year-old boy, Kaden Lum, the son of Heather’s roommate Jalisa Lum. Heather had been on the back porch when the gunman shot her in the legs and then followed her inside, where both she and Kaden were fatally wounded. Jalisa attempted to shield her son and held him as he died; Heather’s boyfriend, Matthew Dean, was shot multiple times but escaped by diving through a window and survived.

Investigators concentrated on Heather’s former boyfriend, Geraldo Castro De Jesus (also recorded as Gerardo DeJesus). Heather had obtained a protective order against him about a month before the killings, citing fears for her safety and his access to firearms. Prosecutors say the relationship had been troubled and that anger over the breakup and allegations of child abuse were motives cited in the case. An arrest was made in August 2015 and charges were brought against De Jesus.

What details about Heather’s last hours, the timeline, or the people in the home could help explain how the attack unfolded?