Some have speculated that Kassie may have been a victim of one of the Baton Rouge serial killers active at the time she was killed, including Derrick Todd Lee or Sean Vincent Gillis.
However, IMO, Kassie's death doesn't seem to fit their MOs.
Derrick Todd Lee stalked and murdered women around LSU's campus; his DNA tied him to the murders of LSU students Murray Pace, Geralyn DeSoto, & Carrie Yoder. Another of his victims, Gina Green, was a nurse who lived very close to LSU's campus & Murray Pace's home. However, DTL's victims were beaten, strangled, and had their throats slashed. There's never been any info released that says any of his victims were ever shot. Similarly, SVG killed his victims in ways similar to DTL; there's no indication any of his victims had been shot, either. Similarly, I cannot find any indication that Jeffrey Lee Guillory, a serial killer who operated in North BR (who killed mainly black prostitutes or drug addicts) used a gun on his victims. One of the three victims linked to him had a crushed skull; another was strangled.
I'm more inclined to think that Kassie Lynn's murder was a robbery gone bad. The intruder came in to rob (and maybe attack) her, but she went for the phone. He saw the phone in her hand and shot at her multiple times, grabbed the school bag, and ran out. Unless maybe DTL or another killer used a gun to get into women's homes (although Kassie's door was broken down, apparently) and sometimes to get women to another location, even if it wasn't used to kill them...but maybe just for control? (Although Lee's surviving victim didn't say anything about him having a gun).
This brings me to the possibility of Brandon Lavergne, murderer of Mickey Shunick & Lisa Pate. We know he had a gun when he abducted Mickey, as well as a knife. When Mickey got the knife away from him and nearly killed him with his own knife, he shot her in the head. The gun seems to have been a way to get Mickey in the car and backup in case the knife wasn't enough to kill her. We know he'll use a gun on victims if he's pushed into a corner. But the gun aspect is the only thing so far I can find to suggest maybe BSL may be the perp. But it doesn't feel right to me. BR is over an hour away from BSL's hometown of Church Point, although we know he got around.
Park Blvd is in the Garden District area of BR (nice area, pretty expensive homes, lots of professionals and LSU professors live in the area). However, it sits on the cusp of one the higher crime areas of BR. Literally right behind Park Blvd (towards the river), things go down hill pretty fast. The area is well-known for crime and drugs. I'm wondering if robbery wasn't the motive for this reason. Maybe the perp saw Kassie return from school carrying only her school bag & figured her wallet must be in it. When things went badly and he thought she had called 911, he grabbed the only thing he could in such a short time, her school bag, figuring it at least had her wallet in it.
It's crazy to me that this happened in the middle of the day in broad daylight. However, DTL appears to have attacked Carrie Yoder, Murray Pace, and maybe Pam Kinnamore in their homes in daylight.
