March 7, Corll vacated his Wirt Road apartment and moved to 2020 Lamar Drive, an address his father had vacated in Pasadena. 2020 Lamar Drive No known victims were killed between February 1 and June 4, 1973. Corll is known to have suffered from a hydrocele in early 1973, which may have contributed to this period of inactivity. In addition, around the time of Lyles's murder, Henley had temporarily moved away to Mount Pleasant in an apparent effort to distance himself from Corll. These facts may account for this sudden lull in killings. Nonetheless, from June, Corll's rate of killings increased dramatically, and both Henley and Brooks later testified to the increase in the level of brutality of the murders committed while Corll resided at Lamar Drive. Henley later compared the acceleration in the frequency of killings and the increase in the brutality exhibited by Corll towards his victims to being "like a blood lust", adding that he and Brooks would instinctively know when Corll was to announce that he "needed to do a new boy," due to the fact that he would appear restless, smoking cigarettes and making reflex movements. On June 4, Henley and Corll abducted 15-year-old William Ray Lawrence; the youth was last seen alive by his father on 31st Street. After three days of abuse and torture, Lawrence was strangled before being buried at Lake Sam Rayburn. Less than two weeks later, 20-year-old Raymond Stanley Blackburn was abducted, strangled, and buried at Lake Sam Rayburn. On July 6, 1973, Henley began attending classes at the Coaches Driving School in Bellaire, where he became acquainted with 15-year-old Homer Luis Garcia. The following day, Garcia telephoned his mother to say he was spending the night with a friend; he was shot and left to bleed to death in Corll's bathtub before he was buried at Lake Sam Rayburn. Five days later, on July 12, 17-year-old John Sellars of Orange County was bound, shot to death and buried at High Island Beach. In July 1973, after Brooks married his pregnant fiancée, Henley temporarily became Corll's sole procurer of victims, assisting in the abduction and murder of three Heights youths between July 19 and 25. Henley claimed these three abductions were the only three that occurred after his becoming an accomplice to Corll in which Brooks was not a participant. One of these three victims, 15-year-old Michael Baulch, brother of