I think if someone had climbed in through a window, the intent would have been to rob and there would have been things missing. I also think the home would have been in more of a mess.So upthread the Ben's bathroom window being open was mentioned in MSM reporting. Here is a photo of the bathroom windows at those apartments. It is about 18" x 18" , 2' square at the most. These are Casement windows that open vertically. A small crank turns a gear and pushes a slim lever to open them (after unlatching). From personally experience when they get this old they are a pain. Originally they could be opened almost fully maybe 75 degrees. Mostly they open about 45 degrees at max. the sill is about 5 and half feet above ground level.
As I was driving through the neighborhood this am. I saw the individual on his bike. This may or may not be an actual thief but it's a good approximation of the type of petty crime that might occur in Ben's area. "Opportunistic" thieves travel from Sunnyslope (N. 2 miles) or from S. of Indian School (about 2.5 miles) or from the avenues. They see an open garage, an unlocked car, etc. and grab whatever they can hock (phone, wallets, bikes) or this can be a recon where they are noting homes that look closed up for a longer period or no one home during the day.
There's so much about this whole thing that doesn't make sense. Why would Ben call his friend to cancel plans, then take a shower and go out? Why was Ben taken 30 miles away, but then the car driven back and used all night, and then set ablaze? Why keep the car and take the chance? Why was the towel still wet when his friends went to his apt hours later? Why was his phone missing, but his credit cards left behind?