They had previously searched the Broadmeadows Valley Park on Barry Road on June 4 in an attempt to find Bishop, who was last seen at his home in Lalor Crescent, Sunbury, on May 27 by his housemate.
Bishop had not accessed his phone or bank accounts in the weeks since he went missing, and his family described his disappearance as out of character.
Three weeks ago, Bishop’s parents made an emotional plea for their son’s return, urging anyone with information to come forward.
“We just want him to know that we love him,” Bishop’s father, Travis, said.
“We just want him to be safe … we’ve had a lot of support, but we still haven’t gotten any closer to our son.”
