On January 28, 1982, Craig Tepel, a 33-year-old resident of Mill Valley, California, was killed during a mass shooting at One Market Plaza in San Francisco. The shooter, identified as 38-year-old Ricardo Contawe, brought a long white box into the Spear Street Tower and, after being rebuffed by his estranged wife Erlinda at the Mission Insurance office on the 18th floor, produced a pump shotgun and opened fire.

Contawe fired between 20 and 24 shells, fatally wounding office manager John Smith and bystander Craig Tepel; Contawe was then shot and killed by responding officers after he turned his weapon toward them. Erlinda Contawe later filed a $1 million claim against the San Francisco Police Department and pursued legal action against the building owners, alleging failures to protect her and to prevent her husband from entering the building.

What new information, photographs, or memories from that day might help clarify how the shooter gained access to the office or how the victims were able to escape?