Penn is a contractor who was hired to work on various projects, including an apartment renovation, between 2011 and 2012 [1] [3] [5]. He provided a quote of $12,500 for a project, which was lower than other quotes received [1] [2]. Penn was known to be familiar with the building and its management, but was also described as potentially annoying to work with [3] [4]. He was responsible for installing vanity sinks and radiators, and was instructed to use modern designs [5] [6]. Penn's work schedule and communication style were sometimes a concern, with instances of late arrivals and lack of notification [4]. He was in contact with various individuals, including A Barrett, Story Cowles, and Karyna Shulia, regarding his work and projects [1] [2] [3] [5] [6].