Three years ago we lost our son

Three and a half years ago we lost our 23 year old son in a freak accident on the overpass at 15th and San Bruno in San Franscisco. We were in the city last week for the first time since the accident. We had to see the scene to try to understand how this could have happened. There were no answers but there were two signs.   Thank you to whoever put them in such a sad, lonely place. There truly was no one like James.