Preston Higgs, 36, was reportedly arrested in Indiana on Friday. Quackenbush was killed on March 3, with police identifying Higgs as the suspect a couple days later. Authorities tracked him to Iowa, resulting in concerns that he might have been headed to Minnesota — where both he and Quackenbush grew up. The pair had dated in their native Rochester before moving to New Orleans together. The Rochester Post-Bulletin detailed the pair's local ties, with Quakenbush having been an instructor at the Rochester Alternative Learning Center (ALC) — and making the news several times over the years for her work with the Green Thumb Initiative at the ALC, which "focused on teaching real-world skills through gardening, grant-writing and beekeeping."