Going with the theory (as per posted link to latest video) that the perpetrator/s posed as official workers of some kind to gain entry, could it have been the housekeeper who might have let them in while AS was occupied with her son? It might take only one to knock on a side or back door and then a few more to push in. Immediately gain control of HK, and knowing where Philip is, grab him. Such a typical ruse, and yet often effective, to pose as PGE, flower deliverers, even go so far as to dress the part.
Another interesting aspect brought up on Anderson's show, as already discussed here, is that LE is not done with the other four. Having Wint's DNA and possibly more identifying evidence than we know yet, they had enough to charge him, but are firming up the case on the rest while checking out the stories of all players against each other and maybe getting more intel from Wint and/or JW or the four.
Strikes me again the grave injustice: a violent useless predator like Wint and whomever else could snuff out the lives of living, productive, promising people making a real difference in the lives of others, many of them less fortunate.
I keep thinking of scenarios to try and pinpoint the timeline and when DW was able to gain access to the house and family. In looking at the St. Alban's schedule I came upon an interesting tidbit at this link.
http://www.stalbansschool.org/page.aspx?pid=295&txtSearch=dismissal
On May 13th, if the original field day was rained out the school planned to have it on May 13th with early dismissal at 1:30pm.
If PS was recovering from a concussion and leg injuries it is doubtful he would have participated in field day. Maybe the weather was nice for the original field day but if not, PS would have come home early on May 13th or AS kept him at home.
After a little more research from
http://www.wunderground.com/history...statename=&reqdb.zip=&reqdb.magic=&reqdb.wmo=
it appears it did rain on May 6th the original field day. So on May 13th school would have left out at 1:30pm. Did PS stay home because he couldn't participate or was did he want to go to school to watch the others compete? AS could have left around 1:30pm to pick up PS from school and DW could have entered the home while VF was there alone. AS and PS could have walked into this nightmare not knowing anything was amiss. And that would explain why VF was still at the house after her 3pm finish time.
Adding: Looked at the weather again and although it says rain it also says amount T which I guess stands for trace. So, unsure if they had field day on May 6th or May 13th.