I said yesterday I may try this again so here goes:
Okay, so on the 'profiling' front, (scare quotes because this isn't super scientific) this post looks at offenders in cases where two girls went missing/murdered together.
I do not think that is the only way to 'profile' this case. One might also look at an offender who targeted a young teen girl at a park or other rural setting, or perhaps look even narrower for only those cases where the victim was not taken from scene, body was not buried, etc. It also could make a difference whether the offender just randomly came across his victims, or was stalking one and the other just happened to be there at the time. However, it could be that a certain type of offender (perhaps an inexperienced one) might hold off for a victim who is alone, while a certain type of offender feels confident enough to attack two people together.
Kristin Lisk - 15 and Katie Lisk 12 - Virginia, May 1, 1997. Probably taken from outside their home, found 5 days later in river 40 miles away. (****the killer was identified and is now deceased, so we know this case could not be related. He also was convicted for taking another girl from outside her home in a single abduction.)
Jennifer Bolduc and Sarah Hajney, both 16, - New York, 1996 after 7AM at or en route from the Hajney home. (killed by Hajney's neighbor, he later hung himself in jail.)
Holly Wells and Jessica Chapman - both 10, UK, 2002 - out for a walk and lured into the home of their teacher by her boyfriend (she was not home.) He had just had an angry argument with the teacher, who he accused of cheating on him. (killer appears to still be incarcerated.)
Ashley Pond and Miranda Gaddis - 12 and 13 years old. They knew their killer, the father of one of their friends. One of the girls had reported that Ward Weaver had tried to rape her previously but it was not investigated by LE. killer is incarcerated. Bodies were buried under concrete pad in yard (Ashley) and in a box in his shed (Miranda).
Taylor Placker, 13 and Skyler Whitaker, 11 shot to death in 2008 while out on a walk by Kevin Sweat. Left in ditch where they were attacked. Sweat is incarcerated.
In other cases, the killer was not found, and/or the girls are still missing such as that of the Lyons sisters, the Abell sisters and the Reker sisters, and Lyric/Elizabeth so there is no offender to compare to.
This is a VERY small sample set and is not exhaustive. Methods of killing seemed to vary. Some knew their attackers previously, others did not. In two of the cases at least one girl was fearful of her abductor, who she knew. The cases where the abductors were unknown seem largely to be crimes of opportunity. Most of these killers left or dumped bodies with little effort to conceal apparently (w/ exception of one who knew his victim.)
None of the cases seemed to have a financial motive/drug motive/revenge motive, etc. Largely the cases seemed to be sexually oriented crimes of opportunity. A high number of these offenders had committed other violent crimes in the past or went on to do so in the future. It's worth noting that all seem to have been committed by lone actors.
If anyone comes across other cases that fit where there was an offender convicted you can PM them to me and I will update this list as I have time.