Authorities raised to $100,000 the reward for information leading to the arrest of a suspect in the fatal shooting of an Orlando police sergeant on Tuesday as he eluded hundreds of officers on the second day of a massive manhunt, reports the Associated Press.

Authorities advised that arrest warrants were being prepared for people who may have helped 41-year-old Markeith Loyd evade deputies in the past month as they searched for him for questioning in the murder of his pregnant ex-girlfriend in December.

Master Sgt. Debra Clayton was fatally shot Monday morning after she approached Loyd in the parking lot of a Wal-Mart store in northwest Orlando. Many of her colleagues immediately joined the pursuit; among them was a sheriff's deputy who died when he was thrown from his motorcycle in an accident.

More than 300 tips from the public have been made, said Barb Bergin, executive director of Crimeline, the tip-line service which is offering the reward, originally set for $60,000.