Men took cash from the register and an employee's cell phone before fleeing on foot.
Residents came home from an errand and found the home filled with smoke.
Authorities have issued an arrest warrant for a fourth person.
Four-year-old Jaedyn Minley died after suffering an hours-long beating.
Pleaded guilty last January to felony mail theft and counterfeiting a money order.
All three were in stable condition with non-life threatening injuries.
The woman suffered a medical emergency about a half-mile from the trail head.
Police are working to determine if speed was a factor.
Crash happened shortly after 8 p.m. in the area of West Irvington and South 12th Avenue.