It's been almost a week since one of Jacksonville's worst fires in recent memory ... A grandmother and three grandchildren died in this mobile home in Oceanway. Right now there's still NO official cause for this fire. 53-year-old Shelia Swearingen...2-year-old Ellen Fowler... 4-year-old Richard Fowler and 10-month-old Janet Fowler died after the fire broke out. Tomorrow evening there will be a viewing for the family at the Hardage-Giddens Town and Country Funeral Home on Normandy Boulevard. It will be at 6 p.m. A funeral service will be at that location .. at 10 a.m. Wednesday. All four will be buried at Riverside Memorial Park. 3 3 That fire was so tragic .. counseling was offered to firefighters who were emotionally traumatized by the loss of life. As difficult as their jobs can be every day .. it is especially challenging in the hot summer months. Channel 4's Heather Leigh spoke with the firefighters union about a new effort to help firefighters perform at their best. 3 22-271'21-1'26Firefighters are trained to handle rising temperatures, smoke, poor visibility and other challenges thrown at them in the heat of the moment...but even these trained professionals can get tired... SOT: Randy Wyse, Jacksonville Association of Firefighters, 22:50, "Our firefighters put their lives on the line every day, running in these burning homes, climbing in ditches for public safety, that's what their job is to save the public.We've started to take a step back and say OK we really are pushing our firefighters to the physical limits., so what we want to make sure we do is if something happens to them, there's somebody to help them."He says most firefighters will go through 2 or 3 tanks of air during any given structure fire ... sometimes they'll tire out after just one... and need rehab.Wyse says that's where the extra response comes in handy.SOT: Randy Wyse, Jacksonville Association of Firefighters, 21:56 "They're actually sending an extra rescue unit there just to be able to deal with the firefighters.Rehab them, hydrate them, cool them down, check their vitals, make sure they're good and then put them back on the scene."He says there are three fire units around town that are in charge of responding as backup to the fires...Wyse says they're also there just in case something goes wrong ...SOT: Randy Wyse, Jacksonville Association of Firefighters, 21:11 They'll stand by in case a firefighter gets lost, trapped or injured. That can respond to them really quickly, in full protective gear, get them out of the house and quickly." Wyse says an extra fire chief will show up as well, to inspect the building, and make sure things are getting down right and let anyone know if there are electrical lines down.HEATHER LKL TAG: Wyse says the extra response helps but it also limits the response for the rest of the city... he says there is room for growth in places like the Westside and the Town center area...and thinks looking into the budget for ways to fill that gap is the next step. HL CH4 TLS.